diff --git a/languages/jetbrains.mps.lang.typesystem2/generator/template/main@generator.mps b/languages/jetbrains.mps.lang.typesystem2/generator/template/main@generator.mps
index 32cd9cb4..acd9ff4d 100644
--- a/languages/jetbrains.mps.lang.typesystem2/generator/template/main@generator.mps
+++ b/languages/jetbrains.mps.lang.typesystem2/generator/template/main@generator.mps
@@ -38,28 +38,6 @@
     <import index="tpek" ref="r:00000000-0000-4000-0000-011c895902c0(jetbrains.mps.baseLanguage.behavior)" implicit="true" />
   </imports>
   <registry>
-    <language id="a247e09e-2435-45ba-b8d2-07e93feba96a" name="jetbrains.mps.baseLanguage.tuples">
-      <concept id="1239360506533" name="jetbrains.mps.baseLanguage.tuples.structure.NamedTupleDeclaration" flags="ng" index="2fD8I5">
-        <child id="322547369016009796" name="extended" index="2d5$Xr" />
-        <child id="1239529553065" name="component" index="2pHZQ9" />
-      </concept>
-      <concept id="1239462176079" name="jetbrains.mps.baseLanguage.tuples.structure.NamedTupleComponentDeclaration" flags="ng" index="2lGYhJ">
-        <property id="1240400839614" name="final" index="3dDGau" />
-        <child id="1239462974287" name="type" index="2lK19J" />
-      </concept>
-      <concept id="1239531918181" name="jetbrains.mps.baseLanguage.tuples.structure.NamedTupleType" flags="in" index="2pR195" />
-      <concept id="1239559992092" name="jetbrains.mps.baseLanguage.tuples.structure.NamedTupleLiteral" flags="nn" index="2ry78W">
-        <reference id="1239560008022" name="tupleDeclaration" index="2ryb1Q" />
-        <child id="1239560910577" name="componentRef" index="2r_Bvh" />
-      </concept>
-      <concept id="1239560581441" name="jetbrains.mps.baseLanguage.tuples.structure.NamedTupleComponentReference" flags="ng" index="2r$n1x">
-        <reference id="1239560595302" name="componentDeclaration" index="2r$qp6" />
-        <child id="1239560837729" name="value" index="2r_lH1" />
-      </concept>
-      <concept id="1239576519914" name="jetbrains.mps.baseLanguage.tuples.structure.NamedTupleComponentAccessOperation" flags="nn" index="2sxana">
-        <reference id="1239576542472" name="component" index="2sxfKC" />
-      </concept>
-    </language>
     <language id="13744753-c81f-424a-9c1b-cf8943bf4e86" name="jetbrains.mps.lang.sharedConcepts">
       <concept id="1161622665029" name="jetbrains.mps.lang.sharedConcepts.structure.ConceptFunctionParameter_model" flags="nn" index="1Q6Npb" />
     </language>
@@ -107,6 +85,9 @@
         <child id="1197027771414" name="operand" index="2Oq$k0" />
         <child id="1197027833540" name="operation" index="2OqNvi" />
       </concept>
+      <concept id="1197029447546" name="jetbrains.mps.baseLanguage.structure.FieldReferenceOperation" flags="nn" index="2OwXpG">
+        <reference id="1197029500499" name="fieldDeclaration" index="2Oxat5" />
+      </concept>
       <concept id="1083260308424" name="jetbrains.mps.baseLanguage.structure.EnumConstantReference" flags="nn" index="Rm8GO">
         <reference id="1083260308426" name="enumConstantDeclaration" index="Rm8GQ" />
         <reference id="1144432896254" name="enumClass" index="1Px2BO" />
@@ -593,8 +574,8 @@
       <ref role="2rZz_L" to="tpee:fz7vLUk" resolve="ParameterDeclaration" />
       <ref role="2rTdP9" to="wq2x:4EfgX2ET3GH" resolve="AbstractRule" />
     </node>
-    <node concept="2rT7sh" id="7t5VLKH5rUl" role="2rTMjI">
-      <property role="TrG5h" value="condition_context_parameter" />
+    <node concept="2rT7sh" id="452KZTbxRHd" role="2rTMjI">
+      <property role="TrG5h" value="condition_variables_parameter" />
       <ref role="2rZz_L" to="tpee:fz7vLUk" resolve="ParameterDeclaration" />
       <ref role="2rTdP9" to="wq2x:4EfgX2ET3GH" resolve="AbstractRule" />
     </node>
@@ -603,8 +584,8 @@
       <ref role="2rZz_L" to="tpee:fz7vLUk" resolve="ParameterDeclaration" />
       <ref role="2rTdP9" to="wq2x:4EfgX2ET3GH" resolve="AbstractRule" />
     </node>
-    <node concept="2rT7sh" id="6YKq674wlCh" role="2rTMjI">
-      <property role="TrG5h" value="required_context_parameter" />
+    <node concept="2rT7sh" id="452KZTbtHI2" role="2rTMjI">
+      <property role="TrG5h" value="required_variables_parameter" />
       <ref role="2rZz_L" to="tpee:fz7vLUk" resolve="ParameterDeclaration" />
       <ref role="2rTdP9" to="wq2x:4EfgX2ET3GH" resolve="AbstractRule" />
     </node>
@@ -623,8 +604,8 @@
       <ref role="2rZz_L" to="tpee:fz7vLUk" resolve="ParameterDeclaration" />
       <ref role="2rTdP9" to="wq2x:4EfgX2ET3GH" resolve="AbstractRule" />
     </node>
-    <node concept="2rT7sh" id="PB1R3YhpdW" role="2rTMjI">
-      <property role="TrG5h" value="apply_context_parameter" />
+    <node concept="2rT7sh" id="452KZTbu4Ik" role="2rTMjI">
+      <property role="TrG5h" value="apply_variables_parameter" />
       <ref role="2rZz_L" to="tpee:fz7vLUk" resolve="ParameterDeclaration" />
       <ref role="2rTdP9" to="wq2x:4EfgX2ET3GH" resolve="AbstractRule" />
     </node>
@@ -638,8 +619,8 @@
       <ref role="2rZz_L" to="tpee:fz7vLUk" resolve="ParameterDeclaration" />
       <ref role="2rTdP9" to="wq2x:4EfgX2ET3GH" resolve="AbstractRule" />
     </node>
-    <node concept="2rT7sh" id="6YKq674wxI1" role="2rTMjI">
-      <property role="TrG5h" value="initContext_context_parameter" />
+    <node concept="2rT7sh" id="452KZTbspLe" role="2rTMjI">
+      <property role="TrG5h" value="initContext_variables_parameter" />
       <ref role="2rZz_L" to="tpee:fz7vLUk" resolve="ParameterDeclaration" />
       <ref role="2rTdP9" to="wq2x:4EfgX2ET3GH" resolve="AbstractRule" />
     </node>
@@ -2261,21 +2242,22 @@
     <property role="3GE5qa" value="rule" />
     <property role="1sVAO0" value="true" />
     <node concept="2tJIrI" id="PB1R3Ym9dc" role="jymVt" />
-    <node concept="2fD8I5" id="PB1R3Ym81s" role="jymVt">
-      <property role="TrG5h" value="Tuple" />
-      <node concept="2lGYhJ" id="PB1R3YsUxW" role="2pHZQ9">
-        <property role="3dDGau" value="false" />
+    <node concept="312cEu" id="452KZTbrMEo" role="jymVt">
+      <property role="2bfB8j" value="false" />
+      <property role="TrG5h" value="Variables" />
+      <node concept="312cEg" id="452KZTbrQTT" role="jymVt">
         <property role="TrG5h" value="logical" />
-        <node concept="3uibUv" id="PB1R3YsV4O" role="2lK19J">
+        <node concept="3Tm1VV" id="452KZTbs22Y" role="1B3o_S" />
+        <node concept="3uibUv" id="452KZTbs22F" role="1tU5fm">
           <ref role="3uigEE" to="yg8f:1mP5b6jQP$C" resolve="ILogical" />
         </node>
       </node>
-      <node concept="3Tm6S6" id="75vUFrSFQAl" role="1B3o_S" />
-      <node concept="1W57fq" id="PB1R3Ym81u" role="lGtFl">
-        <node concept="3IZrLx" id="PB1R3Ym81v" role="3IZSJc">
-          <node concept="3clFbS" id="PB1R3Ym81w" role="2VODD2">
-            <node concept="3clFbF" id="PB1R3Ym81x" role="3cqZAp">
-              <node concept="3clFbT" id="PB1R3Ym81y" role="3clFbG">
+      <node concept="3Tm1VV" id="452KZTbrMEp" role="1B3o_S" />
+      <node concept="1W57fq" id="452KZTbs2mR" role="lGtFl">
+        <node concept="3IZrLx" id="452KZTbs2mT" role="3IZSJc">
+          <node concept="3clFbS" id="452KZTbs2mV" role="2VODD2">
+            <node concept="3clFbF" id="452KZTbs2JU" role="3cqZAp">
+              <node concept="3clFbT" id="452KZTbs2JT" role="3clFbG">
                 <property role="3clFbU" value="false" />
               </node>
             </node>
@@ -2283,7 +2265,7 @@
         </node>
       </node>
     </node>
-    <node concept="2tJIrI" id="4vbeH84zMqV" role="jymVt" />
+    <node concept="2tJIrI" id="452KZTbrYM8" role="jymVt" />
     <node concept="312cEu" id="2JQZWxFbEER" role="jymVt">
       <property role="2bfB8j" value="false" />
       <property role="TrG5h" value="Prototype" />
@@ -2306,8 +2288,8 @@
       <node concept="3Tm1VV" id="2JQZWxFbEES" role="1B3o_S" />
       <node concept="3uibUv" id="2JQZWxFbHsR" role="1zkMxy">
         <ref role="3uigEE" to="i348:4OKkcnfu_vI" resolve="AbstractRuleTemplate" />
-        <node concept="2pR195" id="2JQZWxFk7qM" role="11_B2D">
-          <ref role="3uigEE" node="PB1R3Ym81s" resolve="RuleTemplate.Tuple" />
+        <node concept="3uibUv" id="452KZTbtTy2" role="11_B2D">
+          <ref role="3uigEE" node="452KZTbrMEo" resolve="RuleTemplate.Variables" />
         </node>
       </node>
       <node concept="3clFb_" id="2JQZWxFbHVo" role="jymVt">
@@ -2334,9 +2316,9 @@
           <node concept="3Tqbb2" id="2JQZWxFk8U0" role="1tU5fm" />
         </node>
         <node concept="37vLTG" id="2JQZWxFk8U1" role="3clF46">
-          <property role="TrG5h" value="context" />
-          <node concept="2pR195" id="2JQZWxFk8Ub" role="1tU5fm">
-            <ref role="3uigEE" node="PB1R3Ym81s" resolve="RuleTemplate.Tuple" />
+          <property role="TrG5h" value="variables" />
+          <node concept="3uibUv" id="452KZTbtUKb" role="1tU5fm">
+            <ref role="3uigEE" node="452KZTbrMEo" resolve="RuleTemplate.Variables" />
           </node>
         </node>
         <node concept="3Tm1VV" id="2JQZWxFk8U3" role="1B3o_S" />
@@ -2520,24 +2502,21 @@
           </node>
         </node>
       </node>
-      <node concept="37vLTG" id="6YKq674wgzz" role="3clF46">
-        <property role="TrG5h" value="context" />
-        <node concept="2ZBi8u" id="6YKq674wgz$" role="lGtFl">
-          <ref role="2rW$FS" node="6YKq674wlCh" resolve="required_context_parameter" />
-        </node>
-        <node concept="2pR195" id="6YKq674wgz_" role="1tU5fm">
-          <ref role="3uigEE" node="PB1R3Ym81s" resolve="RuleTemplate.Tuple" />
-          <node concept="1ZhdrF" id="6YKq674wgzA" role="lGtFl">
+      <node concept="37vLTG" id="452KZTbtD1d" role="3clF46">
+        <property role="TrG5h" value="variables" />
+        <node concept="3uibUv" id="452KZTbtGmK" role="1tU5fm">
+          <ref role="3uigEE" node="452KZTbrMEo" resolve="RuleTemplate.Variables" />
+          <node concept="1ZhdrF" id="452KZTbtNaW" role="lGtFl">
             <property role="P3scX" value="f3061a53-9226-4cc5-a443-f952ceaf5816/1107535904670/1107535924139" />
             <property role="2qtEX8" value="classifier" />
-            <node concept="3$xsQk" id="6YKq674wgzB" role="3$ytzL">
-              <node concept="3clFbS" id="6YKq674wgzC" role="2VODD2">
-                <node concept="3clFbF" id="6YKq674wgzD" role="3cqZAp">
-                  <node concept="2OqwBi" id="6YKq674wgzE" role="3clFbG">
-                    <node concept="1iwH7S" id="6YKq674wgzF" role="2Oq$k0" />
-                    <node concept="1iwH70" id="6YKq674wgzG" role="2OqNvi">
-                      <ref role="1iwH77" node="PB1R3YhvhV" resolve="rule_context_declaration" />
-                      <node concept="30H73N" id="6YKq674wgzH" role="1iwH7V" />
+            <node concept="3$xsQk" id="452KZTbtNaX" role="3$ytzL">
+              <node concept="3clFbS" id="452KZTbtNaY" role="2VODD2">
+                <node concept="3clFbF" id="452KZTbtNpR" role="3cqZAp">
+                  <node concept="2OqwBi" id="452KZTbtNpS" role="3clFbG">
+                    <node concept="1iwH7S" id="452KZTbtNpT" role="2Oq$k0" />
+                    <node concept="1iwH70" id="452KZTbtNpU" role="2OqNvi">
+                      <ref role="1iwH77" node="452KZTbsjfN" resolve="rule_variables_declaration" />
+                      <node concept="30H73N" id="452KZTbtNpV" role="1iwH7V" />
                     </node>
                   </node>
                 </node>
@@ -2545,26 +2524,29 @@
             </node>
           </node>
         </node>
-        <node concept="1W57fq" id="6YKq674wgzI" role="lGtFl">
-          <node concept="3IZrLx" id="6YKq674wgzJ" role="3IZSJc">
-            <node concept="3clFbS" id="6YKq674wgzK" role="2VODD2">
-              <node concept="3clFbF" id="6YKq674wgzL" role="3cqZAp">
-                <node concept="2OqwBi" id="6YKq674wgzM" role="3clFbG">
-                  <node concept="2OqwBi" id="6YKq674wgzN" role="2Oq$k0">
-                    <node concept="30H73N" id="6YKq674wgzO" role="2Oq$k0" />
-                    <node concept="2qgKlT" id="6YKq674x$QS" role="2OqNvi">
+        <node concept="2ZBi8u" id="452KZTbtH2A" role="lGtFl">
+          <ref role="2rW$FS" node="452KZTbtHI2" resolve="required_variables_parameter" />
+        </node>
+        <node concept="1W57fq" id="452KZTbtJa4" role="lGtFl">
+          <node concept="3IZrLx" id="452KZTbtJa6" role="3IZSJc">
+            <node concept="3clFbS" id="452KZTbtJa8" role="2VODD2">
+              <node concept="3clFbF" id="452KZTbtJqe" role="3cqZAp">
+                <node concept="2OqwBi" id="452KZTbtJqf" role="3clFbG">
+                  <node concept="2OqwBi" id="452KZTbtJqg" role="2Oq$k0">
+                    <node concept="30H73N" id="452KZTbtJqh" role="2Oq$k0" />
+                    <node concept="2qgKlT" id="452KZTbtJqi" role="2OqNvi">
                       <ref role="37wK5l" to="x5bw:6YKq674xm7G" resolve="availableContextNames" />
                     </node>
                   </node>
-                  <node concept="3GX2aA" id="6YKq674wgzQ" role="2OqNvi" />
+                  <node concept="3GX2aA" id="452KZTbtJqj" role="2OqNvi" />
                 </node>
               </node>
             </node>
           </node>
-          <node concept="gft3U" id="6YKq674wgzR" role="UU_$l">
-            <node concept="37vLTG" id="6YKq674wgzS" role="gfFT$">
-              <property role="TrG5h" value="$noContext$" />
-              <node concept="3uibUv" id="6YKq674wgzT" role="1tU5fm">
+          <node concept="gft3U" id="452KZTbtMrD" role="UU_$l">
+            <node concept="37vLTG" id="452KZTbtMrE" role="gfFT$">
+              <property role="TrG5h" value="$noVariables$" />
+              <node concept="3uibUv" id="452KZTbtMrF" role="1tU5fm">
                 <ref role="3uigEE" to="wyt6:~Object" resolve="Object" />
               </node>
             </node>
@@ -2607,7 +2589,6 @@
       <node concept="2AHcQZ" id="tIwzd1GCmF" role="2AJF6D">
         <ref role="2AI5Lk" to="wyt6:~Override" resolve="Override" />
       </node>
-      <node concept="raruj" id="tIwzd1GCUb" role="lGtFl" />
       <node concept="1W57fq" id="tIwzd1GCUd" role="lGtFl">
         <node concept="3IZrLx" id="tIwzd1GCUg" role="3IZSJc">
           <node concept="3clFbS" id="tIwzd1GCUh" role="2VODD2">
@@ -2639,46 +2620,27 @@
         <ref role="2AI5Lk" to="wyt6:~Override" resolve="Override" />
       </node>
       <node concept="3clFbS" id="6YKq674wFww" role="3clF47">
-        <node concept="3clFbF" id="6YKq674x6v4" role="3cqZAp">
-          <node concept="2ry78W" id="6YKq674x6v3" role="3clFbG">
-            <ref role="2ryb1Q" node="PB1R3Ym81s" resolve="RuleTemplate.Tuple" />
-            <node concept="2r$n1x" id="6YKq674x6v1" role="2r_Bvh">
-              <ref role="2r$qp6" node="PB1R3YsUxW" resolve="logical" />
-              <node concept="10Nm6u" id="6YKq674x6Ti" role="2r_lH1" />
-              <node concept="1WS0z7" id="6YKq674xgfz" role="lGtFl">
-                <node concept="3JmXsc" id="6YKq674xgf_" role="3Jn$fo">
-                  <node concept="3clFbS" id="6YKq674xgfB" role="2VODD2">
-                    <node concept="3clFbF" id="6YKq674xgnS" role="3cqZAp">
-                      <node concept="2OqwBi" id="6YKq674xgnT" role="3clFbG">
-                        <node concept="30H73N" id="6YKq674xgnU" role="2Oq$k0" />
-                        <node concept="2qgKlT" id="29Hp0LOMbYE" role="2OqNvi">
-                          <ref role="37wK5l" to="x5bw:6YKq674xm7G" resolve="availableContextNames" />
+        <node concept="3clFbF" id="452KZTbuttL" role="3cqZAp">
+          <node concept="2ShNRf" id="452KZTbuttH" role="3clFbG">
+            <node concept="HV5vD" id="452KZTbu_NS" role="2ShVmc">
+              <ref role="HV5vE" node="452KZTbrMEo" resolve="RuleTemplate.Variables" />
+              <node concept="1ZhdrF" id="452KZTbuNfx" role="lGtFl">
+                <property role="P3scX" value="f3061a53-9226-4cc5-a443-f952ceaf5816/2820489544401957797/2820489544401957798" />
+                <property role="2qtEX8" value="classifier" />
+                <node concept="3$xsQk" id="452KZTbuNfy" role="3$ytzL">
+                  <node concept="3clFbS" id="452KZTbuNfz" role="2VODD2">
+                    <node concept="3clFbF" id="452KZTbuNhL" role="3cqZAp">
+                      <node concept="2OqwBi" id="452KZTbuNhM" role="3clFbG">
+                        <node concept="1iwH7S" id="452KZTbuNhN" role="2Oq$k0" />
+                        <node concept="1iwH70" id="452KZTbuNhO" role="2OqNvi">
+                          <ref role="1iwH77" node="452KZTbsjfN" resolve="rule_variables_declaration" />
+                          <node concept="30H73N" id="452KZTbuNhP" role="1iwH7V" />
                         </node>
                       </node>
                     </node>
                   </node>
                 </node>
               </node>
-              <node concept="1sPUBX" id="6YKq674FO0G" role="lGtFl">
-                <ref role="v9R2y" node="6YKq674FDyX" resolve="contextName_tupleComponent_new" />
-              </node>
-            </node>
-            <node concept="1ZhdrF" id="6YKq674HLi0" role="lGtFl">
-              <property role="P3scX" value="a247e09e-2435-45ba-b8d2-07e93feba96a/1239559992092/1239560008022" />
-              <property role="2qtEX8" value="tupleDeclaration" />
-              <node concept="3$xsQk" id="6YKq674HLi1" role="3$ytzL">
-                <node concept="3clFbS" id="6YKq674HLi2" role="2VODD2">
-                  <node concept="3clFbF" id="6YKq674HLDb" role="3cqZAp">
-                    <node concept="2OqwBi" id="6YKq674HLGj" role="3clFbG">
-                      <node concept="1iwH7S" id="6YKq674HLDa" role="2Oq$k0" />
-                      <node concept="1iwH70" id="6YKq674HLNj" role="2OqNvi">
-                        <ref role="1iwH77" node="PB1R3YhvhV" resolve="rule_context_declaration" />
-                        <node concept="30H73N" id="6YKq674HMm2" role="1iwH7V" />
-                      </node>
-                    </node>
-                  </node>
-                </node>
-              </node>
             </node>
           </node>
         </node>
@@ -2700,19 +2662,19 @@
           </node>
         </node>
       </node>
-      <node concept="2pR195" id="6YKq674x46Z" role="3clF45">
-        <ref role="3uigEE" node="PB1R3Ym81s" resolve="RuleTemplate.Tuple" />
-        <node concept="1ZhdrF" id="6YKq674x470" role="lGtFl">
+      <node concept="3uibUv" id="452KZTbuHkO" role="3clF45">
+        <ref role="3uigEE" node="452KZTbrMEo" resolve="RuleTemplate.Variables" />
+        <node concept="1ZhdrF" id="452KZTbuKtf" role="lGtFl">
           <property role="P3scX" value="f3061a53-9226-4cc5-a443-f952ceaf5816/1107535904670/1107535924139" />
           <property role="2qtEX8" value="classifier" />
-          <node concept="3$xsQk" id="6YKq674x471" role="3$ytzL">
-            <node concept="3clFbS" id="6YKq674x472" role="2VODD2">
-              <node concept="3clFbF" id="6YKq674x473" role="3cqZAp">
-                <node concept="2OqwBi" id="6YKq674x474" role="3clFbG">
-                  <node concept="1iwH7S" id="6YKq674x475" role="2Oq$k0" />
-                  <node concept="1iwH70" id="6YKq674x476" role="2OqNvi">
-                    <ref role="1iwH77" node="PB1R3YhvhV" resolve="rule_context_declaration" />
-                    <node concept="30H73N" id="6YKq674x477" role="1iwH7V" />
+          <node concept="3$xsQk" id="452KZTbuKtg" role="3$ytzL">
+            <node concept="3clFbS" id="452KZTbuKth" role="2VODD2">
+              <node concept="3clFbF" id="452KZTbuKIO" role="3cqZAp">
+                <node concept="2OqwBi" id="452KZTbuLb1" role="3clFbG">
+                  <node concept="1iwH7S" id="452KZTbuKIN" role="2Oq$k0" />
+                  <node concept="1iwH70" id="452KZTbuLtJ" role="2OqNvi">
+                    <ref role="1iwH77" node="452KZTbsjfN" resolve="rule_variables_declaration" />
+                    <node concept="30H73N" id="452KZTbuMK2" role="1iwH7V" />
                   </node>
                 </node>
               </node>
@@ -2774,21 +2736,21 @@
         </node>
         <node concept="3Tqbb2" id="PB1R3Yta_K" role="1tU5fm" />
       </node>
-      <node concept="37vLTG" id="6YKq674zvVm" role="3clF46">
-        <property role="TrG5h" value="context" />
-        <node concept="2pR195" id="6YKq674zxye" role="1tU5fm">
-          <ref role="3uigEE" node="PB1R3Ym81s" resolve="RuleTemplate.Tuple" />
-          <node concept="1ZhdrF" id="6YKq674zxWJ" role="lGtFl">
+      <node concept="37vLTG" id="452KZTbscIB" role="3clF46">
+        <property role="TrG5h" value="variables" />
+        <node concept="3uibUv" id="452KZTbsg9h" role="1tU5fm">
+          <ref role="3uigEE" node="452KZTbrMEo" resolve="RuleTemplate.Variables" />
+          <node concept="1ZhdrF" id="452KZTbsgGY" role="lGtFl">
             <property role="P3scX" value="f3061a53-9226-4cc5-a443-f952ceaf5816/1107535904670/1107535924139" />
             <property role="2qtEX8" value="classifier" />
-            <node concept="3$xsQk" id="6YKq674zxWK" role="3$ytzL">
-              <node concept="3clFbS" id="6YKq674zxWL" role="2VODD2">
-                <node concept="3clFbF" id="6YKq674zziV" role="3cqZAp">
-                  <node concept="2OqwBi" id="6YKq674zziW" role="3clFbG">
-                    <node concept="1iwH7S" id="6YKq674zziX" role="2Oq$k0" />
-                    <node concept="1iwH70" id="6YKq674zziY" role="2OqNvi">
-                      <ref role="1iwH77" node="PB1R3YhvhV" resolve="rule_context_declaration" />
-                      <node concept="30H73N" id="6YKq674zziZ" role="1iwH7V" />
+            <node concept="3$xsQk" id="452KZTbsgGZ" role="3$ytzL">
+              <node concept="3clFbS" id="452KZTbsgH0" role="2VODD2">
+                <node concept="3clFbF" id="452KZTbsiyn" role="3cqZAp">
+                  <node concept="2OqwBi" id="452KZTbsiyo" role="3clFbG">
+                    <node concept="1iwH7S" id="452KZTbsiyp" role="2Oq$k0" />
+                    <node concept="1iwH70" id="452KZTbsiyq" role="2OqNvi">
+                      <ref role="1iwH77" node="452KZTbsjfN" resolve="rule_variables_declaration" />
+                      <node concept="30H73N" id="452KZTbsiyr" role="1iwH7V" />
                     </node>
                   </node>
                 </node>
@@ -2796,8 +2758,8 @@
             </node>
           </node>
         </node>
-        <node concept="2ZBi8u" id="6YKq674z$zh" role="lGtFl">
-          <ref role="2rW$FS" node="6YKq674wxI1" resolve="initContext_context_parameter" />
+        <node concept="2ZBi8u" id="452KZTbsnC9" role="lGtFl">
+          <ref role="2rW$FS" node="452KZTbspLe" resolve="initContext_variables_parameter" />
         </node>
       </node>
       <node concept="3Tm1VV" id="PB1R3YsPfR" role="1B3o_S" />
@@ -2834,7 +2796,7 @@
                 </node>
               </node>
               <node concept="37vLTw" id="PpXnWs2VFm" role="37wK5m">
-                <ref role="3cqZAo" node="6YKq674zvVm" resolve="context" />
+                <ref role="3cqZAo" node="452KZTbscIB" resolve="variables" />
                 <node concept="1ZhdrF" id="PpXnWs34xZ" role="lGtFl">
                   <property role="P3scX" value="f3061a53-9226-4cc5-a443-f952ceaf5816/1068498886296/1068581517664" />
                   <property role="2qtEX8" value="variableDeclaration" />
@@ -2844,7 +2806,7 @@
                         <node concept="2OqwBi" id="PpXnWs364F" role="3clFbG">
                           <node concept="1iwH7S" id="PpXnWs35ZT" role="2Oq$k0" />
                           <node concept="1iwH70" id="PpXnWs36cR" role="2OqNvi">
-                            <ref role="1iwH77" node="6YKq674wxI1" resolve="initContext_context_parameter" />
+                            <ref role="1iwH77" node="452KZTbspLe" resolve="initContext_variables_parameter" />
                             <node concept="30H73N" id="PpXnWs36qo" role="1iwH7V" />
                           </node>
                         </node>
@@ -2882,25 +2844,25 @@
             </node>
           </node>
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-        <node concept="3clFbF" id="6YKq674zryb" role="3cqZAp">
-          <node concept="37vLTI" id="6YKq674zryc" role="3clFbG">
-            <node concept="10Nm6u" id="6YKq674zryd" role="37vLTx" />
-            <node concept="2OqwBi" id="6YKq674zrye" role="37vLTJ">
-              <node concept="37vLTw" id="6YKq674zG0Z" role="2Oq$k0">
-                <ref role="3cqZAo" node="6YKq674zvVm" resolve="context" />
+        <node concept="3clFbF" id="452KZTbswxo" role="3cqZAp">
+          <node concept="37vLTI" id="452KZTbszf7" role="3clFbG">
+            <node concept="10Nm6u" id="452KZTbs$bE" role="37vLTx" />
+            <node concept="2OqwBi" id="452KZTbsxUO" role="37vLTJ">
+              <node concept="37vLTw" id="452KZTbswxm" role="2Oq$k0">
+                <ref role="3cqZAo" node="452KZTbscIB" resolve="variables" />
               </node>
-              <node concept="2sxana" id="6YKq674zH6P" role="2OqNvi">
-                <ref role="2sxfKC" node="PB1R3YsUxW" resolve="logical" />
+              <node concept="2OwXpG" id="452KZTbsyP_" role="2OqNvi">
+                <ref role="2Oxat5" node="452KZTbrQTT" resolve="logical" />
               </node>
             </node>
           </node>
-          <node concept="1WS0z7" id="6YKq674zryh" role="lGtFl">
-            <node concept="3JmXsc" id="6YKq674zryi" role="3Jn$fo">
-              <node concept="3clFbS" id="6YKq674zryj" role="2VODD2">
-                <node concept="3clFbF" id="6YKq674zryk" role="3cqZAp">
-                  <node concept="2OqwBi" id="6YKq674zryl" role="3clFbG">
-                    <node concept="30H73N" id="6YKq674zrym" role="2Oq$k0" />
-                    <node concept="2qgKlT" id="6YKq674zryn" role="2OqNvi">
+          <node concept="1WS0z7" id="452KZTbsBFr" role="lGtFl">
+            <node concept="3JmXsc" id="452KZTbsBFt" role="3Jn$fo">
+              <node concept="3clFbS" id="452KZTbsBFv" role="2VODD2">
+                <node concept="3clFbF" id="452KZTbsG2s" role="3cqZAp">
+                  <node concept="2OqwBi" id="452KZTbsG2t" role="3clFbG">
+                    <node concept="30H73N" id="452KZTbsG2u" role="2Oq$k0" />
+                    <node concept="2qgKlT" id="452KZTbsG2v" role="2OqNvi">
                       <ref role="37wK5l" to="x5bw:6YKq674xSjI" resolve="localContextNames" />
                     </node>
                   </node>
@@ -2908,13 +2870,13 @@
               </node>
             </node>
           </node>
-          <node concept="1sPUBX" id="6YKq674zryo" role="lGtFl">
-            <ref role="v9R2y" node="75vUFrSvd1C" resolve="contextName_tupleComponent_init" />
+          <node concept="1sPUBX" id="452KZTbs_XU" role="lGtFl">
+            <ref role="v9R2y" node="452KZTbs$z9" resolve="contextName_variable_init" />
           </node>
         </node>
         <node concept="3clFbF" id="6YKq674zWIr" role="3cqZAp">
-          <node concept="37vLTw" id="6YKq674zWIp" role="3clFbG">
-            <ref role="3cqZAo" node="6YKq674zvVm" resolve="context" />
+          <node concept="37vLTw" id="452KZTbsHGS" role="3clFbG">
+            <ref role="3cqZAo" node="452KZTbscIB" resolve="variables" />
           </node>
         </node>
       </node>
@@ -2935,19 +2897,19 @@
           </node>
         </node>
       </node>
-      <node concept="2pR195" id="6YKq674zJDs" role="3clF45">
-        <ref role="3uigEE" node="PB1R3Ym81s" resolve="RuleTemplate.Tuple" />
-        <node concept="1ZhdrF" id="6YKq674zLg9" role="lGtFl">
+      <node concept="3uibUv" id="452KZTbsMZo" role="3clF45">
+        <ref role="3uigEE" node="452KZTbrMEo" resolve="RuleTemplate.Variables" />
+        <node concept="1ZhdrF" id="452KZTbsPZY" role="lGtFl">
           <property role="P3scX" value="f3061a53-9226-4cc5-a443-f952ceaf5816/1107535904670/1107535924139" />
           <property role="2qtEX8" value="classifier" />
-          <node concept="3$xsQk" id="6YKq674zLga" role="3$ytzL">
-            <node concept="3clFbS" id="6YKq674zLgb" role="2VODD2">
-              <node concept="3clFbF" id="75vUFrSxkJQ" role="3cqZAp">
-                <node concept="2OqwBi" id="75vUFrSxkT6" role="3clFbG">
-                  <node concept="1iwH7S" id="75vUFrSxkJP" role="2Oq$k0" />
-                  <node concept="1iwH70" id="75vUFrSxmH9" role="2OqNvi">
-                    <ref role="1iwH77" node="PB1R3YhvhV" resolve="rule_context_declaration" />
-                    <node concept="30H73N" id="75vUFrSxoCK" role="1iwH7V" />
+          <node concept="3$xsQk" id="452KZTbsPZZ" role="3$ytzL">
+            <node concept="3clFbS" id="452KZTbsQ00" role="2VODD2">
+              <node concept="3clFbF" id="452KZTbsQep" role="3cqZAp">
+                <node concept="2OqwBi" id="452KZTbsQBr" role="3clFbG">
+                  <node concept="1iwH7S" id="452KZTbsQeo" role="2Oq$k0" />
+                  <node concept="1iwH70" id="452KZTbsQKA" role="2OqNvi">
+                    <ref role="1iwH77" node="452KZTbsjfN" resolve="rule_variables_declaration" />
+                    <node concept="30H73N" id="452KZTbsTBd" role="1iwH7V" />
                   </node>
                 </node>
               </node>
@@ -2967,6 +2929,7 @@
       </node>
       <node concept="3Tm1VV" id="4vbeH84zMsa" role="1B3o_S" />
       <node concept="3clFbS" id="4vbeH84zMsc" role="3clF47">
+        <node concept="3clFbH" id="452KZTbucc1" role="3cqZAp" />
         <node concept="3cpWs8" id="5MHpiylAQ$s" role="3cqZAp">
           <node concept="3cpWsn" id="5MHpiylAQ$t" role="3cpWs9">
             <property role="TrG5h" value="builder" />
@@ -3043,7 +3006,7 @@
                         </node>
                       </node>
                       <node concept="37vLTw" id="2JQZWxFfrMW" role="37wK5m">
-                        <ref role="3cqZAo" node="PB1R3YojbZ" resolve="context" />
+                        <ref role="3cqZAo" node="452KZTbu10Z" resolve="variables" />
                         <node concept="1ZhdrF" id="2JQZWxFhb2Y" role="lGtFl">
                           <property role="P3scX" value="f3061a53-9226-4cc5-a443-f952ceaf5816/1068498886296/1068581517664" />
                           <property role="2qtEX8" value="variableDeclaration" />
@@ -3053,7 +3016,7 @@
                                 <node concept="2OqwBi" id="2JQZWxFhbjF" role="3clFbG">
                                   <node concept="1iwH7S" id="2JQZWxFhbhx" role="2Oq$k0" />
                                   <node concept="1iwH70" id="2JQZWxFhbp_" role="2OqNvi">
-                                    <ref role="1iwH77" node="PB1R3YhpdW" resolve="apply_context_parameter" />
+                                    <ref role="1iwH77" node="452KZTbu4Ik" resolve="apply_variables_parameter" />
                                     <node concept="30H73N" id="2JQZWxFhbv$" role="1iwH7V" />
                                   </node>
                                 </node>
@@ -3271,56 +3234,56 @@
         </node>
         <node concept="3Tqbb2" id="1zN1RIkUhmw" role="1tU5fm" />
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-        <node concept="2ZBi8u" id="PB1R3YokNd" role="lGtFl">
-          <ref role="2rW$FS" node="PB1R3YhpdW" resolve="apply_context_parameter" />
+      <node concept="37vLTG" id="452KZTbu10Z" role="3clF46">
+        <property role="TrG5h" value="variables" />
+        <node concept="3uibUv" id="452KZTbu110" role="1tU5fm">
+          <ref role="3uigEE" node="452KZTbrMEo" resolve="RuleTemplate.Variables" />
+          <node concept="1ZhdrF" id="452KZTbu111" role="lGtFl">
+            <property role="P3scX" value="f3061a53-9226-4cc5-a443-f952ceaf5816/1107535904670/1107535924139" />
+            <property role="2qtEX8" value="classifier" />
+            <node concept="3$xsQk" id="452KZTbu112" role="3$ytzL">
+              <node concept="3clFbS" id="452KZTbu113" role="2VODD2">
+                <node concept="3clFbF" id="452KZTbu114" role="3cqZAp">
+                  <node concept="2OqwBi" id="452KZTbu115" role="3clFbG">
+                    <node concept="1iwH7S" id="452KZTbu116" role="2Oq$k0" />
+                    <node concept="1iwH70" id="452KZTbu117" role="2OqNvi">
+                      <ref role="1iwH77" node="452KZTbsjfN" resolve="rule_variables_declaration" />
+                      <node concept="30H73N" id="452KZTbu118" role="1iwH7V" />
+                    </node>
+                  </node>
+                </node>
+              </node>
+            </node>
+          </node>
         </node>
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-                    <node concept="2qgKlT" id="6YKq674xADn" role="2OqNvi">
+        <node concept="2ZBi8u" id="452KZTbu119" role="lGtFl">
+          <ref role="2rW$FS" node="452KZTbu4Ik" resolve="apply_variables_parameter" />
+        </node>
+        <node concept="1W57fq" id="452KZTbu11a" role="lGtFl">
+          <node concept="3IZrLx" id="452KZTbu11b" role="3IZSJc">
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+              <node concept="3clFbF" id="452KZTbu11d" role="3cqZAp">
+                <node concept="2OqwBi" id="452KZTbu11e" role="3clFbG">
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+                    <node concept="30H73N" id="452KZTbu11g" role="2Oq$k0" />
+                    <node concept="2qgKlT" id="452KZTbu11h" role="2OqNvi">
                       <ref role="37wK5l" to="x5bw:6YKq674xm7G" resolve="availableContextNames" />
                     </node>
                   </node>
-                  <node concept="3GX2aA" id="75vUFrSQLv3" role="2OqNvi" />
+                  <node concept="3GX2aA" id="452KZTbu11i" role="2OqNvi" />
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-              <property role="TrG5h" value="$noContext$" />
-              <node concept="3uibUv" id="PB1R3Yrdr5" role="1tU5fm">
+          <node concept="gft3U" id="452KZTbu11j" role="UU_$l">
+            <node concept="37vLTG" id="452KZTbu11k" role="gfFT$">
+              <property role="TrG5h" value="$noVariables$" />
+              <node concept="3uibUv" id="452KZTbu11l" role="1tU5fm">
                 <ref role="3uigEE" to="wyt6:~Object" resolve="Object" />
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           </node>
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     <node concept="3Tm1VV" id="4vbeH84zLY$" role="1B3o_S" />
@@ -3329,43 +3292,43 @@
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       <ref role="3uigEE" to="i348:4OKkcnfu_vI" resolve="AbstractRuleTemplate" />
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-        <ref role="3uigEE" node="PB1R3Ym81s" resolve="RuleTemplate.Tuple" />
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+      <node concept="3uibUv" id="452KZTbsW68" role="11_B2D">
+        <ref role="3uigEE" node="452KZTbrMEo" resolve="RuleTemplate.Variables" />
+        <node concept="1ZhdrF" id="452KZTbsW69" role="lGtFl">
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-                    <node concept="30H73N" id="6YKq674zQ1F" role="1iwH7V" />
+          <node concept="3$xsQk" id="452KZTbsW6a" role="3$ytzL">
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-              <node concept="3clFbF" id="6YKq674zSuX" role="3cqZAp">
-                <node concept="2OqwBi" id="6YKq674zSuY" role="3clFbG">
-                  <node concept="2OqwBi" id="6YKq674zSuZ" role="2Oq$k0">
-                    <node concept="30H73N" id="6YKq674zSv0" role="2Oq$k0" />
-                    <node concept="2qgKlT" id="6YKq674zSv1" role="2OqNvi">
+        <node concept="1W57fq" id="452KZTbt0F8" role="lGtFl">
+          <node concept="3IZrLx" id="452KZTbt0Fa" role="3IZSJc">
+            <node concept="3clFbS" id="452KZTbt0Fc" role="2VODD2">
+              <node concept="3clFbF" id="452KZTbt5r0" role="3cqZAp">
+                <node concept="2OqwBi" id="452KZTbt5r1" role="3clFbG">
+                  <node concept="2OqwBi" id="452KZTbt5r2" role="2Oq$k0">
+                    <node concept="30H73N" id="452KZTbt5r3" role="2Oq$k0" />
+                    <node concept="2qgKlT" id="452KZTbt5r4" role="2OqNvi">
                       <ref role="37wK5l" to="x5bw:6YKq674xm7G" resolve="availableContextNames" />
                     </node>
                   </node>
-                  <node concept="3GX2aA" id="6YKq674zSv2" role="2OqNvi" />
+                  <node concept="3GX2aA" id="452KZTbt5r5" role="2OqNvi" />
                 </node>
               </node>
             </node>
           </node>
-          <node concept="gft3U" id="6YKq674zTf4" role="UU_$l">
-            <node concept="3uibUv" id="6YKq674zTf5" role="gfFT$">
+          <node concept="gft3U" id="452KZTbt61o" role="UU_$l">
+            <node concept="3uibUv" id="452KZTbt61p" role="gfFT$">
               <ref role="3uigEE" to="wyt6:~Object" resolve="Object" />
             </node>
           </node>
@@ -4306,21 +4269,22 @@
       <property role="TrG5h" value="T" />
     </node>
     <node concept="2tJIrI" id="5MHpiylJzan" role="jymVt" />
-    <node concept="2fD8I5" id="PB1R3YkiWg" role="jymVt">
-      <property role="TrG5h" value="Tuple" />
-      <node concept="2lGYhJ" id="6YKq674$1AY" role="2pHZQ9">
-        <property role="3dDGau" value="false" />
+    <node concept="312cEu" id="452KZTbuWIy" role="jymVt">
+      <property role="2bfB8j" value="false" />
+      <property role="TrG5h" value="Variables" />
+      <node concept="312cEg" id="452KZTbuWIz" role="jymVt">
         <property role="TrG5h" value="logical" />
-        <node concept="3uibUv" id="6YKq674$2nz" role="2lK19J">
+        <node concept="3Tm1VV" id="452KZTbuWI$" role="1B3o_S" />
+        <node concept="3uibUv" id="452KZTbuWI_" role="1tU5fm">
           <ref role="3uigEE" to="yg8f:1mP5b6jQP$C" resolve="ILogical" />
         </node>
       </node>
-      <node concept="3Tm6S6" id="75vUFrSFTFE" role="1B3o_S" />
-      <node concept="1W57fq" id="PB1R3YkmyG" role="lGtFl">
-        <node concept="3IZrLx" id="PB1R3YkmyI" role="3IZSJc">
-          <node concept="3clFbS" id="PB1R3YkmyK" role="2VODD2">
-            <node concept="3clFbF" id="PB1R3YknnX" role="3cqZAp">
-              <node concept="3clFbT" id="PB1R3YknnW" role="3clFbG">
+      <node concept="3Tm1VV" id="452KZTbuWIA" role="1B3o_S" />
+      <node concept="1W57fq" id="452KZTbuWIB" role="lGtFl">
+        <node concept="3IZrLx" id="452KZTbuWIC" role="3IZSJc">
+          <node concept="3clFbS" id="452KZTbuWID" role="2VODD2">
+            <node concept="3clFbF" id="452KZTbuWIE" role="3cqZAp">
+              <node concept="3clFbT" id="452KZTbuWIF" role="3clFbG">
                 <property role="3clFbU" value="false" />
               </node>
             </node>
@@ -4328,7 +4292,110 @@
         </node>
       </node>
     </node>
-    <node concept="2tJIrI" id="PB1R3YmbRH" role="jymVt" />
+    <node concept="2tJIrI" id="452KZTbuVSQ" role="jymVt" />
+    <node concept="312cEu" id="452KZTbw2k7" role="jymVt">
+      <property role="2bfB8j" value="false" />
+      <property role="TrG5h" value="Prototype" />
+      <node concept="3clFbW" id="452KZTbw2k8" role="jymVt">
+        <node concept="3cqZAl" id="452KZTbw2k9" role="3clF45" />
+        <node concept="3Tm1VV" id="452KZTbw2ka" role="1B3o_S" />
+        <node concept="3clFbS" id="452KZTbw2kb" role="3clF47">
+          <node concept="XkiVB" id="452KZTbw2kc" role="3cqZAp">
+            <ref role="37wK5l" to="i348:4OKkcnfu_tV" resolve="AbstractIteratingRuleTemplate" />
+            <node concept="37vLTw" id="452KZTbw2kd" role="37wK5m">
+              <ref role="3cqZAo" node="452KZTbw2ke" resolve="name" />
+            </node>
+          </node>
+        </node>
+        <node concept="37vLTG" id="452KZTbw2ke" role="3clF46">
+          <property role="TrG5h" value="name" />
+          <node concept="17QB3L" id="452KZTbw2kf" role="1tU5fm" />
+        </node>
+      </node>
+      <node concept="3Tm1VV" id="452KZTbw2kg" role="1B3o_S" />
+      <node concept="3uibUv" id="452KZTbw2kh" role="1zkMxy">
+        <ref role="3uigEE" to="i348:4OKkcnfu_tT" resolve="AbstractIteratingRuleTemplate" />
+        <node concept="3uibUv" id="452KZTbw2ki" role="11_B2D">
+          <ref role="3uigEE" node="452KZTbrMEo" resolve="RuleTemplate.Variables" />
+        </node>
+        <node concept="3uibUv" id="452KZTbw75l" role="11_B2D">
+          <ref role="3uigEE" node="2N2MQGCMVs3" resolve="TypeManifest" />
+        </node>
+      </node>
+      <node concept="3clFb_" id="452KZTbw2kj" role="jymVt">
+        <property role="1EzhhJ" value="false" />
+        <property role="TrG5h" value="applicableConcept" />
+        <node concept="3THzug" id="452KZTbw2kk" role="3clF45" />
+        <node concept="3Tm1VV" id="452KZTbw2kl" role="1B3o_S" />
+        <node concept="3clFbS" id="452KZTbw2km" role="3clF47">
+          <node concept="3clFbF" id="452KZTbw2kn" role="3cqZAp">
+            <node concept="10Nm6u" id="452KZTbw2ko" role="3clFbG" />
+          </node>
+        </node>
+      </node>
+      <node concept="3clFb_" id="452KZTbw8Xd" role="jymVt">
+        <property role="1EzhhJ" value="false" />
+        <property role="TrG5h" value="iterateOver" />
+        <node concept="37vLTG" id="452KZTbw8Xe" role="3clF46">
+          <property role="TrG5h" value="input" />
+          <node concept="3Tqbb2" id="452KZTbw8Xf" role="1tU5fm" />
+        </node>
+        <node concept="A3Dl8" id="452KZTbw8Xg" role="3clF45">
+          <node concept="3uibUv" id="452KZTbw8X$" role="A3Ik2">
+            <ref role="3uigEE" node="2N2MQGCMVs3" resolve="TypeManifest" />
+          </node>
+        </node>
+        <node concept="3Tm1VV" id="452KZTbw8Xi" role="1B3o_S" />
+        <node concept="3clFbS" id="452KZTbw8X_" role="3clF47">
+          <node concept="3clFbF" id="452KZTbwc5p" role="3cqZAp">
+            <node concept="10Nm6u" id="452KZTbwc5o" role="3clFbG" />
+          </node>
+        </node>
+      </node>
+      <node concept="3clFb_" id="452KZTbw8XA" role="jymVt">
+        <property role="1EzhhJ" value="false" />
+        <property role="TrG5h" value="apply" />
+        <node concept="A3Dl8" id="452KZTbw8XB" role="3clF45">
+          <node concept="3uibUv" id="452KZTbw8XC" role="A3Ik2">
+            <ref role="3uigEE" to="nc4n:7eGEHDlc$ap" resolve="RuleBuilder" />
+          </node>
+        </node>
+        <node concept="37vLTG" id="452KZTbw8XD" role="3clF46">
+          <property role="TrG5h" value="input" />
+          <node concept="3Tqbb2" id="452KZTbw8XE" role="1tU5fm" />
+        </node>
+        <node concept="37vLTG" id="452KZTbw8XF" role="3clF46">
+          <property role="TrG5h" value="iterateOver" />
+          <node concept="3uibUv" id="452KZTbw8Y5" role="1tU5fm">
+            <ref role="3uigEE" node="2N2MQGCMVs3" resolve="TypeManifest" />
+          </node>
+        </node>
+        <node concept="37vLTG" id="452KZTbw8XH" role="3clF46">
+          <property role="TrG5h" value="context" />
+          <node concept="3uibUv" id="452KZTbw8Y4" role="1tU5fm">
+            <ref role="3uigEE" node="452KZTbrMEo" resolve="RuleTemplate.Variables" />
+          </node>
+        </node>
+        <node concept="3Tm1VV" id="452KZTbw8XJ" role="1B3o_S" />
+        <node concept="3clFbS" id="452KZTbw8Y6" role="3clF47">
+          <node concept="3clFbF" id="452KZTbwcb5" role="3cqZAp">
+            <node concept="10Nm6u" id="452KZTbwcb4" role="3clFbG" />
+          </node>
+        </node>
+      </node>
+      <node concept="1W57fq" id="452KZTbw2k$" role="lGtFl">
+        <node concept="3IZrLx" id="452KZTbw2k_" role="3IZSJc">
+          <node concept="3clFbS" id="452KZTbw2kA" role="2VODD2">
+            <node concept="3clFbF" id="452KZTbw2kB" role="3cqZAp">
+              <node concept="3clFbT" id="452KZTbw2kC" role="3clFbG">
+                <property role="3clFbU" value="false" />
+              </node>
+            </node>
+          </node>
+        </node>
+      </node>
+    </node>
+    <node concept="2tJIrI" id="452KZTbw1rj" role="jymVt" />
     <node concept="3clFbW" id="5MHpiylJzao" role="jymVt">
       <node concept="3cqZAl" id="5MHpiylJzap" role="3clF45" />
       <node concept="3Tm1VV" id="5MHpiylJzaq" role="1B3o_S" />
@@ -4583,21 +4650,21 @@
           </node>
         </node>
       </node>
-      <node concept="37vLTG" id="6YKq674$Fly" role="3clF46">
-        <property role="TrG5h" value="context" />
-        <node concept="2pR195" id="6YKq674$Flz" role="1tU5fm">
-          <ref role="3uigEE" node="PB1R3YkiWg" resolve="IteratingRuleTemplate.Tuple" />
-          <node concept="1ZhdrF" id="6YKq674$Fl$" role="lGtFl">
+      <node concept="37vLTG" id="452KZTbv1_5" role="3clF46">
+        <property role="TrG5h" value="variables" />
+        <node concept="3uibUv" id="452KZTbv1_6" role="1tU5fm">
+          <ref role="3uigEE" node="452KZTbuWIy" resolve="IteratingRuleTemplate.Variables" />
+          <node concept="1ZhdrF" id="452KZTbv1_7" role="lGtFl">
             <property role="P3scX" value="f3061a53-9226-4cc5-a443-f952ceaf5816/1107535904670/1107535924139" />
             <property role="2qtEX8" value="classifier" />
-            <node concept="3$xsQk" id="6YKq674$Fl_" role="3$ytzL">
-              <node concept="3clFbS" id="6YKq674$FlA" role="2VODD2">
-                <node concept="3clFbF" id="6YKq674$FlB" role="3cqZAp">
-                  <node concept="2OqwBi" id="6YKq674$FlC" role="3clFbG">
-                    <node concept="1iwH7S" id="6YKq674$FlD" role="2Oq$k0" />
-                    <node concept="1iwH70" id="6YKq674$FlE" role="2OqNvi">
-                      <ref role="1iwH77" node="PB1R3YhvhV" resolve="rule_context_declaration" />
-                      <node concept="30H73N" id="6YKq674$FlF" role="1iwH7V" />
+            <node concept="3$xsQk" id="452KZTbv1_8" role="3$ytzL">
+              <node concept="3clFbS" id="452KZTbv1_9" role="2VODD2">
+                <node concept="3clFbF" id="452KZTbv1_a" role="3cqZAp">
+                  <node concept="2OqwBi" id="452KZTbv1_b" role="3clFbG">
+                    <node concept="1iwH7S" id="452KZTbv1_c" role="2Oq$k0" />
+                    <node concept="1iwH70" id="452KZTbv1_d" role="2OqNvi">
+                      <ref role="1iwH77" node="452KZTbsjfN" resolve="rule_variables_declaration" />
+                      <node concept="30H73N" id="452KZTbv1_e" role="1iwH7V" />
                     </node>
                   </node>
                 </node>
@@ -4605,29 +4672,29 @@
             </node>
           </node>
         </node>
-        <node concept="2ZBi8u" id="6YKq674$FlG" role="lGtFl">
-          <ref role="2rW$FS" node="6YKq674wlCh" resolve="required_context_parameter" />
+        <node concept="2ZBi8u" id="452KZTbv1_f" role="lGtFl">
+          <ref role="2rW$FS" node="452KZTbtHI2" resolve="required_variables_parameter" />
         </node>
-        <node concept="1W57fq" id="6YKq674EAYy" role="lGtFl">
-          <node concept="3IZrLx" id="6YKq674EAY$" role="3IZSJc">
-            <node concept="3clFbS" id="6YKq674EAYA" role="2VODD2">
-              <node concept="3clFbF" id="6YKq674EBRN" role="3cqZAp">
-                <node concept="2OqwBi" id="6YKq674EDIq" role="3clFbG">
-                  <node concept="2OqwBi" id="6YKq674EBXS" role="2Oq$k0">
-                    <node concept="30H73N" id="6YKq674EBRM" role="2Oq$k0" />
-                    <node concept="2qgKlT" id="6YKq674ECvv" role="2OqNvi">
+        <node concept="1W57fq" id="452KZTbv1_g" role="lGtFl">
+          <node concept="3IZrLx" id="452KZTbv1_h" role="3IZSJc">
+            <node concept="3clFbS" id="452KZTbv1_i" role="2VODD2">
+              <node concept="3clFbF" id="452KZTbv1_j" role="3cqZAp">
+                <node concept="2OqwBi" id="452KZTbv1_k" role="3clFbG">
+                  <node concept="2OqwBi" id="452KZTbv1_l" role="2Oq$k0">
+                    <node concept="30H73N" id="452KZTbv1_m" role="2Oq$k0" />
+                    <node concept="2qgKlT" id="452KZTbv1_n" role="2OqNvi">
                       <ref role="37wK5l" to="x5bw:6YKq674xm7G" resolve="availableContextNames" />
                     </node>
                   </node>
-                  <node concept="3GX2aA" id="6YKq674EF7j" role="2OqNvi" />
+                  <node concept="3GX2aA" id="452KZTbv1_o" role="2OqNvi" />
                 </node>
               </node>
             </node>
           </node>
-          <node concept="gft3U" id="6YKq674EGQw" role="UU_$l">
-            <node concept="37vLTG" id="6YKq674EHK$" role="gfFT$">
-              <property role="TrG5h" value="$noContext$" />
-              <node concept="3uibUv" id="6YKq674EHLF" role="1tU5fm">
+          <node concept="gft3U" id="452KZTbv1_p" role="UU_$l">
+            <node concept="37vLTG" id="452KZTbv1_q" role="gfFT$">
+              <property role="TrG5h" value="$noVariables$" />
+              <node concept="3uibUv" id="452KZTbv1_r" role="1tU5fm">
                 <ref role="3uigEE" to="wyt6:~Object" resolve="Object" />
               </node>
             </node>
@@ -4702,54 +4769,32 @@
           <ref role="16sUi3" node="tIwzd2f2vj" resolve="T" />
         </node>
       </node>
-      <node concept="2pR195" id="6YKq674FQWm" role="3clF45">
-        <ref role="3uigEE" node="PB1R3YkiWg" resolve="IteratingRuleTemplate.Tuple" />
-      </node>
       <node concept="3Tm1VV" id="6YKq674FQVw" role="1B3o_S" />
       <node concept="2AHcQZ" id="6YKq674FQV$" role="2AJF6D">
         <ref role="2AI5Lk" to="wyt6:~Override" resolve="Override" />
       </node>
       <node concept="3clFbS" id="6YKq674FQWQ" role="3clF47">
-        <node concept="3clFbF" id="6YKq674G8Fy" role="3cqZAp">
-          <node concept="2ry78W" id="6YKq674G8Fz" role="3clFbG">
-            <ref role="2ryb1Q" node="PB1R3YkiWg" resolve="IteratingRuleTemplate.Tuple" />
-            <node concept="2r$n1x" id="6YKq674G8F$" role="2r_Bvh">
-              <ref role="2r$qp6" node="6YKq674$1AY" resolve="logical" />
-              <node concept="10Nm6u" id="6YKq674G8F_" role="2r_lH1" />
-              <node concept="1WS0z7" id="6YKq674G8FA" role="lGtFl">
-                <node concept="3JmXsc" id="6YKq674G8FB" role="3Jn$fo">
-                  <node concept="3clFbS" id="6YKq674G8FC" role="2VODD2">
-                    <node concept="3clFbF" id="6YKq674G8FD" role="3cqZAp">
-                      <node concept="2OqwBi" id="6YKq674G8FE" role="3clFbG">
-                        <node concept="30H73N" id="6YKq674G8FF" role="2Oq$k0" />
-                        <node concept="2qgKlT" id="29Hp0LOMgc1" role="2OqNvi">
-                          <ref role="37wK5l" to="x5bw:6YKq674xm7G" resolve="availableContextNames" />
+        <node concept="3clFbF" id="452KZTbvAFG" role="3cqZAp">
+          <node concept="2ShNRf" id="452KZTbvAFH" role="3clFbG">
+            <node concept="HV5vD" id="452KZTbvAFI" role="2ShVmc">
+              <ref role="HV5vE" node="452KZTbuWIy" resolve="IteratingRuleTemplate.Variables" />
+              <node concept="1ZhdrF" id="452KZTbvAFJ" role="lGtFl">
+                <property role="P3scX" value="f3061a53-9226-4cc5-a443-f952ceaf5816/2820489544401957797/2820489544401957798" />
+                <property role="2qtEX8" value="classifier" />
+                <node concept="3$xsQk" id="452KZTbvAFK" role="3$ytzL">
+                  <node concept="3clFbS" id="452KZTbvAFL" role="2VODD2">
+                    <node concept="3clFbF" id="452KZTbvAFM" role="3cqZAp">
+                      <node concept="2OqwBi" id="452KZTbvAFN" role="3clFbG">
+                        <node concept="1iwH7S" id="452KZTbvAFO" role="2Oq$k0" />
+                        <node concept="1iwH70" id="452KZTbvAFP" role="2OqNvi">
+                          <ref role="1iwH77" node="452KZTbsjfN" resolve="rule_variables_declaration" />
+                          <node concept="30H73N" id="452KZTbvAFQ" role="1iwH7V" />
                         </node>
                       </node>
                     </node>
                   </node>
                 </node>
               </node>
-              <node concept="1sPUBX" id="6YKq674G8FH" role="lGtFl">
-                <ref role="v9R2y" node="6YKq674FDyX" resolve="contextName_tupleComponent_new" />
-              </node>
-            </node>
-            <node concept="1ZhdrF" id="6YKq674HPDi" role="lGtFl">
-              <property role="P3scX" value="a247e09e-2435-45ba-b8d2-07e93feba96a/1239559992092/1239560008022" />
-              <property role="2qtEX8" value="tupleDeclaration" />
-              <node concept="3$xsQk" id="6YKq674HPDj" role="3$ytzL">
-                <node concept="3clFbS" id="6YKq674HPDk" role="2VODD2">
-                  <node concept="3clFbF" id="6YKq674HQ1m" role="3cqZAp">
-                    <node concept="2OqwBi" id="6YKq674HQ3M" role="3clFbG">
-                      <node concept="1iwH7S" id="6YKq674HQ1l" role="2Oq$k0" />
-                      <node concept="1iwH70" id="6YKq674HQ9h" role="2OqNvi">
-                        <ref role="1iwH77" node="PB1R3YhvhV" resolve="rule_context_declaration" />
-                        <node concept="30H73N" id="6YKq674HRni" role="1iwH7V" />
-                      </node>
-                    </node>
-                  </node>
-                </node>
-              </node>
             </node>
           </node>
         </node>
@@ -4771,6 +4816,26 @@
           </node>
         </node>
       </node>
+      <node concept="3uibUv" id="452KZTbvxr8" role="3clF45">
+        <ref role="3uigEE" node="452KZTbuWIy" resolve="IteratingRuleTemplate.Variables" />
+        <node concept="1ZhdrF" id="452KZTbvxr9" role="lGtFl">
+          <property role="P3scX" value="f3061a53-9226-4cc5-a443-f952ceaf5816/1107535904670/1107535924139" />
+          <property role="2qtEX8" value="classifier" />
+          <node concept="3$xsQk" id="452KZTbvxra" role="3$ytzL">
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@@ -4876,21 +4941,21 @@
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+      <node concept="37vLTG" id="452KZTbvGOR" role="3clF46">
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             <property role="P3scX" value="f3061a53-9226-4cc5-a443-f952ceaf5816/1107535904670/1107535924139" />
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@@ -4898,28 +4963,8 @@
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@@ -4928,25 +4973,101 @@
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                       <ref role="37wK5l" to="x5bw:6YKq674xSjI" resolve="localContextNames" />
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@@ -4954,13 +5075,13 @@
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@@ -4981,6 +5102,26 @@
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@@ -5068,59 +5209,60 @@
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           <node concept="3cpWsn" id="5MHpiylJzbS" role="3cpWs9">
             <property role="TrG5h" value="builder" />
@@ -5161,6 +5303,119 @@
           </node>
         </node>
         <node concept="3clFbH" id="6KkyQm3ZbBW" role="3cqZAp" />
+        <node concept="3clFbF" id="452KZTbwX18" role="3cqZAp">
+          <node concept="37vLTI" id="452KZTbwX19" role="3clFbG">
+            <node concept="2OqwBi" id="452KZTbwX1a" role="37vLTx">
+              <node concept="37vLTw" id="452KZTbwX1b" role="2Oq$k0">
+                <ref role="3cqZAo" node="5MHpiylJzbS" resolve="builder" />
+              </node>
+              <node concept="liA8E" id="452KZTbwX1c" role="2OqNvi">
+                <ref role="37wK5l" to="nc4n:77AxcO4ZwMR" resolve="merge" />
+                <node concept="2OqwBi" id="452KZTbwX1d" role="37wK5m">
+                  <node concept="2OqwBi" id="452KZTbwX1e" role="2Oq$k0">
+                    <node concept="1rXfSq" id="452KZTbwX1f" role="2Oq$k0">
+                      <ref role="37wK5l" to="i348:452KZTbwmcF" resolve="prototype" />
+                    </node>
+                    <node concept="liA8E" id="452KZTbwX1g" role="2OqNvi">
+                      <ref role="37wK5l" to="i348:1ffsG7bXfck" resolve="apply" />
+                      <node concept="37vLTw" id="452KZTbwX1h" role="37wK5m">
+                        <ref role="3cqZAo" node="5MHpiylJzbE" resolve="input" />
+                        <node concept="1ZhdrF" id="452KZTbwX1i" role="lGtFl">
+                          <property role="P3scX" value="f3061a53-9226-4cc5-a443-f952ceaf5816/1068498886296/1068581517664" />
+                          <property role="2qtEX8" value="variableDeclaration" />
+                          <node concept="3$xsQk" id="452KZTbwX1j" role="3$ytzL">
+                            <node concept="3clFbS" id="452KZTbwX1k" role="2VODD2">
+                              <node concept="3clFbF" id="452KZTbwX1l" role="3cqZAp">
+                                <node concept="2OqwBi" id="452KZTbwX1m" role="3clFbG">
+                                  <node concept="1iwH7S" id="452KZTbwX1n" role="2Oq$k0" />
+                                  <node concept="1iwH70" id="452KZTbwX1o" role="2OqNvi">
+                                    <ref role="1iwH77" node="4vbeH84CYdF" resolve="apply_input_parameter" />
+                                    <node concept="30H73N" id="452KZTbwX1p" role="1iwH7V" />
+                                  </node>
+                                </node>
+                              </node>
+                            </node>
+                          </node>
+                        </node>
+                      </node>
+                      <node concept="37vLTw" id="452KZTbx2PI" role="37wK5m">
+                        <ref role="3cqZAo" node="5MHpiylKftJ" resolve="iterateOver" />
+                        <node concept="1ZhdrF" id="452KZTbx4pR" role="lGtFl">
+                          <property role="P3scX" value="f3061a53-9226-4cc5-a443-f952ceaf5816/1068498886296/1068581517664" />
+                          <property role="2qtEX8" value="variableDeclaration" />
+                          <node concept="3$xsQk" id="452KZTbx4pS" role="3$ytzL">
+                            <node concept="3clFbS" id="452KZTbx4pT" role="2VODD2">
+                              <node concept="3clFbF" id="452KZTbx7jL" role="3cqZAp">
+                                <node concept="2OqwBi" id="452KZTbx7nq" role="3clFbG">
+                                  <node concept="1iwH7S" id="452KZTbx7jK" role="2Oq$k0" />
+                                  <node concept="1iwH70" id="452KZTbx7tk" role="2OqNvi">
+                                    <ref role="1iwH77" node="5MHpiylK7iY" resolve="apply_iterateOver_parameter" />
+                                    <node concept="30H73N" id="452KZTbx7Ac" role="1iwH7V" />
+                                  </node>
+                                </node>
+                              </node>
+                            </node>
+                          </node>
+                        </node>
+                      </node>
+                      <node concept="37vLTw" id="452KZTbwX1q" role="37wK5m">
+                        <ref role="3cqZAo" node="452KZTbwHK1" resolve="variables" />
+                        <node concept="1ZhdrF" id="452KZTbwX1r" role="lGtFl">
+                          <property role="P3scX" value="f3061a53-9226-4cc5-a443-f952ceaf5816/1068498886296/1068581517664" />
+                          <property role="2qtEX8" value="variableDeclaration" />
+                          <node concept="3$xsQk" id="452KZTbwX1s" role="3$ytzL">
+                            <node concept="3clFbS" id="452KZTbwX1t" role="2VODD2">
+                              <node concept="3clFbF" id="452KZTbwX1u" role="3cqZAp">
+                                <node concept="2OqwBi" id="452KZTbwX1v" role="3clFbG">
+                                  <node concept="1iwH7S" id="452KZTbwX1w" role="2Oq$k0" />
+                                  <node concept="1iwH70" id="452KZTbwX1x" role="2OqNvi">
+                                    <ref role="1iwH77" node="452KZTbu4Ik" resolve="apply_variables_parameter" />
+                                    <node concept="30H73N" id="452KZTbwX1y" role="1iwH7V" />
+                                  </node>
+                                </node>
+                              </node>
+                            </node>
+                          </node>
+                        </node>
+                      </node>
+                    </node>
+                  </node>
+                  <node concept="1uHKPH" id="452KZTbwX1z" role="2OqNvi" />
+                </node>
+              </node>
+            </node>
+            <node concept="37vLTw" id="452KZTbwX1$" role="37vLTJ">
+              <ref role="3cqZAo" node="5MHpiylJzbS" resolve="builder" />
+            </node>
+          </node>
+          <node concept="1W57fq" id="452KZTbwX1_" role="lGtFl">
+            <node concept="3IZrLx" id="452KZTbwX1A" role="3IZSJc">
+              <node concept="3clFbS" id="452KZTbwX1B" role="2VODD2">
+                <node concept="3clFbF" id="452KZTbwX1C" role="3cqZAp">
+                  <node concept="2OqwBi" id="452KZTbwX1D" role="3clFbG">
+                    <node concept="2OqwBi" id="452KZTbwX1E" role="2Oq$k0">
+                      <node concept="2OqwBi" id="452KZTbwX1F" role="2Oq$k0">
+                        <node concept="1PxgMI" id="452KZTbwX1G" role="2Oq$k0">
+                          <property role="1BlNFB" value="true" />
+                          <ref role="1PxNhF" to="wq2x:7eGEHDlgPU4" resolve="Rule" />
+                          <node concept="30H73N" id="452KZTbwX1H" role="1PxMeX" />
+                        </node>
+                        <node concept="3TrEf2" id="452KZTbwX1I" role="2OqNvi">
+                          <ref role="3Tt5mk" to="wq2x:6wQEDbCLoaZ" />
+                        </node>
+                      </node>
+                      <node concept="3TrEf2" id="452KZTbwX1J" role="2OqNvi">
+                        <ref role="3Tt5mk" to="wq2x:6wQEDbCL4Fj" />
+                      </node>
+                    </node>
+                    <node concept="3x8VRR" id="452KZTbwX1K" role="2OqNvi" />
+                  </node>
+                </node>
+              </node>
+            </node>
+          </node>
+        </node>
+        <node concept="3clFbH" id="452KZTbwWS0" role="3cqZAp" />
         <node concept="3clFbH" id="5MHpiylJzbX" role="3cqZAp">
           <node concept="1WS0z7" id="5MHpiylJzbY" role="lGtFl">
             <node concept="3JmXsc" id="5MHpiylJzbZ" role="3Jn$fo">
@@ -5290,43 +5545,43 @@
     </node>
     <node concept="3uibUv" id="5MHpiylJAY9" role="1zkMxy">
       <ref role="3uigEE" to="i348:4OKkcnfu_tT" resolve="AbstractIteratingRuleTemplate" />
-      <node concept="2pR195" id="6YKq674$pVf" role="11_B2D">
-        <ref role="3uigEE" node="PB1R3YkiWg" resolve="IteratingRuleTemplate.Tuple" />
-        <node concept="1ZhdrF" id="6YKq674$pVg" role="lGtFl">
+      <node concept="3uibUv" id="452KZTbvcY0" role="11_B2D">
+        <ref role="3uigEE" node="452KZTbuWIy" resolve="IteratingRuleTemplate.Variables" />
+        <node concept="1ZhdrF" id="452KZTbvcY1" role="lGtFl">
           <property role="P3scX" value="f3061a53-9226-4cc5-a443-f952ceaf5816/1107535904670/1107535924139" />
           <property role="2qtEX8" value="classifier" />
-          <node concept="3$xsQk" id="6YKq674$pVh" role="3$ytzL">
-            <node concept="3clFbS" id="6YKq674$pVi" role="2VODD2">
-              <node concept="3clFbF" id="6YKq674$pVj" role="3cqZAp">
-                <node concept="2OqwBi" id="6YKq674$pVk" role="3clFbG">
-                  <node concept="1iwH7S" id="6YKq674$pVl" role="2Oq$k0" />
-                  <node concept="1iwH70" id="6YKq674$pVm" role="2OqNvi">
-                    <ref role="1iwH77" node="PB1R3YhvhV" resolve="rule_context_declaration" />
-                    <node concept="30H73N" id="6YKq674$pVn" role="1iwH7V" />
+          <node concept="3$xsQk" id="452KZTbvcY2" role="3$ytzL">
+            <node concept="3clFbS" id="452KZTbvcY3" role="2VODD2">
+              <node concept="3clFbF" id="452KZTbvcY4" role="3cqZAp">
+                <node concept="2OqwBi" id="452KZTbvcY5" role="3clFbG">
+                  <node concept="1iwH7S" id="452KZTbvcY6" role="2Oq$k0" />
+                  <node concept="1iwH70" id="452KZTbvcY7" role="2OqNvi">
+                    <ref role="1iwH77" node="452KZTbsjfN" resolve="rule_variables_declaration" />
+                    <node concept="30H73N" id="452KZTbvcY8" role="1iwH7V" />
                   </node>
                 </node>
               </node>
             </node>
           </node>
         </node>
-        <node concept="1W57fq" id="6YKq674$pVo" role="lGtFl">
-          <node concept="3IZrLx" id="6YKq674$pVp" role="3IZSJc">
-            <node concept="3clFbS" id="6YKq674$pVq" role="2VODD2">
-              <node concept="3clFbF" id="6YKq674$pVr" role="3cqZAp">
-                <node concept="2OqwBi" id="6YKq674$pVs" role="3clFbG">
-                  <node concept="2OqwBi" id="6YKq674$pVt" role="2Oq$k0">
-                    <node concept="30H73N" id="6YKq674$pVu" role="2Oq$k0" />
-                    <node concept="2qgKlT" id="6YKq674$pVv" role="2OqNvi">
+        <node concept="1W57fq" id="452KZTbvcY9" role="lGtFl">
+          <node concept="3IZrLx" id="452KZTbvcYa" role="3IZSJc">
+            <node concept="3clFbS" id="452KZTbvcYb" role="2VODD2">
+              <node concept="3clFbF" id="452KZTbvcYc" role="3cqZAp">
+                <node concept="2OqwBi" id="452KZTbvcYd" role="3clFbG">
+                  <node concept="2OqwBi" id="452KZTbvcYe" role="2Oq$k0">
+                    <node concept="30H73N" id="452KZTbvcYf" role="2Oq$k0" />
+                    <node concept="2qgKlT" id="452KZTbvcYg" role="2OqNvi">
                       <ref role="37wK5l" to="x5bw:6YKq674xm7G" resolve="availableContextNames" />
                     </node>
                   </node>
-                  <node concept="3GX2aA" id="6YKq674$pVw" role="2OqNvi" />
+                  <node concept="3GX2aA" id="452KZTbvcYh" role="2OqNvi" />
                 </node>
               </node>
             </node>
           </node>
-          <node concept="gft3U" id="6YKq674$pVx" role="UU_$l">
-            <node concept="3uibUv" id="6YKq674$pVy" role="gfFT$">
+          <node concept="gft3U" id="452KZTbvcYi" role="UU_$l">
+            <node concept="3uibUv" id="452KZTbvcYj" role="gfFT$">
               <ref role="3uigEE" to="wyt6:~Object" resolve="Object" />
             </node>
           </node>
@@ -6420,7 +6675,7 @@
       <node concept="gft3U" id="75vUFrSLPhc" role="1lVwrX">
         <node concept="10Nm6u" id="75vUFrSLPhd" role="gfFT$">
           <node concept="1sPUBX" id="75vUFrSLPhe" role="lGtFl">
-            <ref role="v9R2y" node="75vUFrSLCmZ" resolve="logical_tuple_reference" />
+            <ref role="v9R2y" node="452KZTbxZc2" resolve="logical_variable_reference" />
           </node>
         </node>
       </node>
@@ -6729,30 +6984,20 @@
       <ref role="2rZz_L" to="tpee:fzcpWvJ" resolve="LocalVariableDeclaration" />
       <ref role="2rTdP9" to="5j4j:7E86$tKtfM3" resolve="LogicalVariableDeclaration" />
     </node>
-    <node concept="2rT7sh" id="PB1R3Y9_v5" role="2rTMjI">
-      <property role="TrG5h" value="logical_tupleComponent" />
+    <node concept="2rT7sh" id="452KZTbtpTP" role="2rTMjI">
+      <property role="TrG5h" value="logical_field" />
       <ref role="2rTdP9" to="5j4j:7E86$tKtfM3" resolve="LogicalVariableDeclaration" />
-      <ref role="2rZz_L" to="cx9y:i2lGYlf" resolve="NamedTupleComponentDeclaration" />
+      <ref role="2rZz_L" to="tpee:fz12cDC" resolve="FieldDeclaration" />
     </node>
-    <node concept="2rT7sh" id="6YKq674y9p5" role="2rTMjI">
-      <property role="TrG5h" value="letValue_tupleComponent" />
-      <ref role="2rZz_L" to="cx9y:i2lGYlf" resolve="NamedTupleComponentDeclaration" />
+    <node concept="2rT7sh" id="452KZTbtjYV" role="2rTMjI">
+      <property role="TrG5h" value="letValue_field" />
       <ref role="2rTdP9" to="wq2x:5MHpiylEsuT" resolve="RuleParameterDeclaration" />
+      <ref role="2rZz_L" to="tpee:fz12cDC" resolve="FieldDeclaration" />
     </node>
-    <node concept="2rT7sh" id="75vUFrSTvpL" role="2rTMjI">
-      <property role="TrG5h" value="rule_tuple_init" />
+    <node concept="2rT7sh" id="452KZTbsjfN" role="2rTMjI">
+      <property role="TrG5h" value="rule_variables_declaration" />
       <ref role="2rTdP9" to="wq2x:4EfgX2ET3GH" resolve="AbstractRule" />
-      <ref role="2rZz_L" to="tpee:fzcpWvJ" resolve="LocalVariableDeclaration" />
-    </node>
-    <node concept="2rT7sh" id="PB1R3YhvhV" role="2rTMjI">
-      <property role="TrG5h" value="rule_context_declaration" />
-      <ref role="2rTdP9" to="wq2x:4EfgX2ET3GH" resolve="AbstractRule" />
-      <ref role="2rZz_L" to="cx9y:i2fD8E_" resolve="NamedTupleDeclaration" />
-    </node>
-    <node concept="2rT7sh" id="6YKq674q3$y" role="2rTMjI">
-      <property role="TrG5h" value="rule_extended_context" />
-      <ref role="2rTdP9" to="wq2x:4EfgX2ET3GH" resolve="AbstractRule" />
-      <ref role="2rZz_L" to="cx9y:i2pR1d_" resolve="NamedTupleType" />
+      <ref role="2rZz_L" to="tpee:fz12cDA" resolve="ClassConcept" />
     </node>
   </node>
   <node concept="jVnub" id="7jC45KceVg_">
@@ -7040,26 +7285,29 @@
         </node>
       </node>
       <node concept="2tJIrI" id="6YKq674bBhW" role="jymVt" />
-      <node concept="2fD8I5" id="6YKq674bBVy" role="jymVt">
-        <property role="TrG5h" value="Base" />
-        <node concept="3Tm6S6" id="6YKq674c3dt" role="1B3o_S" />
+      <node concept="312cEu" id="452KZTbxxlu" role="jymVt">
+        <property role="2bfB8j" value="false" />
+        <property role="TrG5h" value="BaseVariables" />
+        <node concept="2tJIrI" id="452KZTbxA97" role="jymVt" />
+        <node concept="3Tm1VV" id="452KZTbxxly" role="1B3o_S" />
       </node>
-      <node concept="2tJIrI" id="6YKq674BiI3" role="jymVt" />
-      <node concept="2fD8I5" id="PB1R3Y9cTq" role="jymVt">
-        <property role="TrG5h" value="Context" />
-        <node concept="2lGYhJ" id="PB1R3Y9dDj" role="2pHZQ9">
-          <property role="3dDGau" value="false" />
-          <property role="TrG5h" value="parameter" />
-          <node concept="3uibUv" id="PB1R3Y9dIk" role="2lK19J">
+      <node concept="2tJIrI" id="452KZTbx_v$" role="jymVt" />
+      <node concept="312cEu" id="452KZTbx$P9" role="jymVt">
+        <property role="2bfB8j" value="false" />
+        <property role="TrG5h" value="Variables" />
+        <node concept="312cEg" id="452KZTbx$Pa" role="jymVt">
+          <property role="TrG5h" value="var" />
+          <node concept="3Tm1VV" id="452KZTbx$Pb" role="1B3o_S" />
+          <node concept="3uibUv" id="452KZTbx$Pc" role="1tU5fm">
             <ref role="3uigEE" to="yg8f:1mP5b6jQP$C" resolve="ILogical" />
           </node>
-          <node concept="1WS0z7" id="PB1R3Y9dIq" role="lGtFl">
-            <node concept="3JmXsc" id="PB1R3Y9dIt" role="3Jn$fo">
-              <node concept="3clFbS" id="PB1R3Y9dIu" role="2VODD2">
-                <node concept="3clFbF" id="6YKq674xPx_" role="3cqZAp">
-                  <node concept="2OqwBi" id="6YKq674xPCi" role="3clFbG">
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-                    <node concept="2qgKlT" id="6YKq674yckL" role="2OqNvi">
+          <node concept="1WS0z7" id="452KZTbxKeF" role="lGtFl">
+            <node concept="3JmXsc" id="452KZTbxKeH" role="3Jn$fo">
+              <node concept="3clFbS" id="452KZTbxKeJ" role="2VODD2">
+                <node concept="3clFbF" id="452KZTbxKHs" role="3cqZAp">
+                  <node concept="2OqwBi" id="452KZTbxKHt" role="3clFbG">
+                    <node concept="30H73N" id="452KZTbxKHu" role="2Oq$k0" />
+                    <node concept="2qgKlT" id="452KZTbxKHv" role="2OqNvi">
                       <ref role="37wK5l" to="x5bw:6YKq674xSjI" resolve="localContextNames" />
                     </node>
                   </node>
@@ -7067,64 +7315,87 @@
               </node>
             </node>
           </node>
-          <node concept="1sPUBX" id="75vUFrSvz8O" role="lGtFl">
-            <ref role="v9R2y" node="75vUFrSva4O" resolve="contextName_tuple_declaration" />
+          <node concept="1sPUBX" id="452KZTbxJR$" role="lGtFl">
+            <ref role="v9R2y" node="452KZTbxEFE" resolve="contextName_field_declaration" />
           </node>
         </node>
-        <node concept="3Tm1VV" id="PB1R3Y9cTr" role="1B3o_S" />
-        <node concept="raruj" id="PB1R3Y9d$q" role="lGtFl" />
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-          <node concept="3IZrLx" id="PB1R3Yqx0a" role="3IZSJc">
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-              <node concept="3clFbF" id="75vUFrSQpUZ" role="3cqZAp">
-                <node concept="2OqwBi" id="75vUFrSQqBl" role="3clFbG">
-                  <node concept="2OqwBi" id="75vUFrSQq2q" role="2Oq$k0">
-                    <node concept="30H73N" id="75vUFrSQpUX" role="2Oq$k0" />
-                    <node concept="2qgKlT" id="6YKq674DHOU" role="2OqNvi">
+        <node concept="3Tm1VV" id="452KZTbx$Pd" role="1B3o_S" />
+        <node concept="raruj" id="452KZTbxAgH" role="lGtFl" />
+        <node concept="1W57fq" id="452KZTbxBz6" role="lGtFl">
+          <node concept="3IZrLx" id="452KZTbxBz8" role="3IZSJc">
+            <node concept="3clFbS" id="452KZTbxBza" role="2VODD2">
+              <node concept="3clFbF" id="452KZTbxBTx" role="3cqZAp">
+                <node concept="2OqwBi" id="452KZTbxBTy" role="3clFbG">
+                  <node concept="2OqwBi" id="452KZTbxBTz" role="2Oq$k0">
+                    <node concept="30H73N" id="452KZTbxBT$" role="2Oq$k0" />
+                    <node concept="2qgKlT" id="452KZTbxBT_" role="2OqNvi">
                       <ref role="37wK5l" to="x5bw:6YKq674xm7G" resolve="availableContextNames" />
                     </node>
                   </node>
-                  <node concept="3GX2aA" id="75vUFrSQr4H" role="2OqNvi" />
+                  <node concept="3GX2aA" id="452KZTbxBTA" role="2OqNvi" />
                 </node>
               </node>
             </node>
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@@ -7268,24 +7539,21 @@
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@@ -7293,26 +7561,29 @@
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@@ -10831,521 +10179,6 @@
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   <node concept="jVnub" id="75vUFrT6ejC">
     <property role="3GE5qa" value="rule" />
     <property role="TrG5h" value="rule_input_reference" />
@@ -12052,32 +10885,33 @@
             <node concept="312cEu" id="6YKq674BnZ5" role="1Koe22">
               <property role="2bfB8j" value="true" />
               <property role="TrG5h" value="Context" />
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-                  <property role="TrG5h" value="component" />
-                  <node concept="3uibUv" id="6YKq674Bo$_" role="2lK19J">
+              <node concept="312cEu" id="452KZTby5lz" role="jymVt">
+                <property role="2bfB8j" value="false" />
+                <property role="TrG5h" value="Variables" />
+                <node concept="312cEg" id="452KZTby5l$" role="jymVt">
+                  <property role="TrG5h" value="var" />
+                  <node concept="3Tm1VV" id="452KZTby5l_" role="1B3o_S" />
+                  <node concept="3uibUv" id="452KZTby5pq" role="1tU5fm">
                     <ref role="3uigEE" to="wyt6:~Object" resolve="Object" />
                   </node>
                 </node>
-                <node concept="3Tm6S6" id="6YKq674FHeH" role="1B3o_S" />
+                <node concept="3Tm6S6" id="452KZTby5lB" role="1B3o_S" />
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-              <node concept="2tJIrI" id="6YKq674BosO" role="jymVt" />
+              <node concept="2tJIrI" id="452KZTby5tp" role="jymVt" />
               <node concept="3clFb_" id="7oCJKsqrH07" role="jymVt">
                 <property role="TrG5h" value="method" />
                 <node concept="37vLTG" id="7oCJKsqrH08" role="3clF46">
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-                  <node concept="2pR195" id="6YKq674BoCD" role="1tU5fm">
-                    <ref role="3uigEE" node="6YKq674BouH" resolve="Context.Tuple" />
+                  <property role="TrG5h" value="variables" />
+                  <node concept="3uibUv" id="452KZTby5$5" role="1tU5fm">
+                    <ref role="3uigEE" node="452KZTby5lz" resolve="Context.Variables" />
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                   <node concept="3clFbF" id="7oCJKsqrH0c" role="3cqZAp">
-                    <node concept="2OqwBi" id="6YKq674Bp1g" role="3clFbG">
+                    <node concept="2OqwBi" id="452KZTby5Dv" role="3clFbG">
                       <node concept="37vLTw" id="7oCJKsqrH0d" role="2Oq$k0">
-                        <ref role="3cqZAo" node="7oCJKsqrH08" resolve="context" />
+                        <ref role="3cqZAo" node="7oCJKsqrH08" resolve="variables" />
                         <node concept="1ZhdrF" id="7oCJKsqrH0f" role="lGtFl">
                           <property role="P3scX" value="f3061a53-9226-4cc5-a443-f952ceaf5816/1068498886296/1068581517664" />
                           <property role="2qtEX8" value="variableDeclaration" />
@@ -12087,7 +10921,7 @@
                                 <node concept="2OqwBi" id="7oCJKsqrH0j" role="3clFbG">
                                   <node concept="1iwH7S" id="7oCJKsqrH0k" role="2Oq$k0" />
                                   <node concept="1iwH70" id="7oCJKsqrH0l" role="2OqNvi">
-                                    <ref role="1iwH77" node="PB1R3YhpdW" resolve="apply_context_parameter" />
+                                    <ref role="1iwH77" node="452KZTbu4Ik" resolve="apply_variables_parameter" />
                                     <node concept="2OqwBi" id="7oCJKsqrH0m" role="1iwH7V">
                                       <node concept="30H73N" id="7oCJKsqrH0n" role="2Oq$k0" />
                                       <node concept="2Xjw5R" id="7oCJKsqrH0o" role="2OqNvi">
@@ -12105,21 +10939,21 @@
                           </node>
                         </node>
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-                                  <node concept="1iwH70" id="6YKq674Bqgs" role="2OqNvi">
-                                    <ref role="1iwH77" node="6YKq674y9p5" resolve="letValue_tupleComponent" />
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-                                      <node concept="30H73N" id="6YKq674BqmF" role="2Oq$k0" />
-                                      <node concept="3TrEf2" id="6YKq674BqUS" role="2OqNvi">
+                      <node concept="2OwXpG" id="452KZTby5Kg" role="2OqNvi">
+                        <ref role="2Oxat5" node="452KZTby5l$" resolve="var" />
+                        <node concept="1ZhdrF" id="452KZTby6jI" role="lGtFl">
+                          <property role="P3scX" value="f3061a53-9226-4cc5-a443-f952ceaf5816/1197029447546/1197029500499" />
+                          <property role="2qtEX8" value="fieldDeclaration" />
+                          <node concept="3$xsQk" id="452KZTby6jJ" role="3$ytzL">
+                            <node concept="3clFbS" id="452KZTby6jK" role="2VODD2">
+                              <node concept="3clFbF" id="452KZTby6nR" role="3cqZAp">
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+                                  <node concept="1iwH7S" id="452KZTby6nT" role="2Oq$k0" />
+                                  <node concept="1iwH70" id="452KZTby6nU" role="2OqNvi">
+                                    <ref role="1iwH77" node="452KZTbtjYV" resolve="letValue_field" />
+                                    <node concept="2OqwBi" id="452KZTby6nV" role="1iwH7V">
+                                      <node concept="30H73N" id="452KZTby6nW" role="2Oq$k0" />
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                                         <ref role="3Tt5mk" to="wq2x:5MHpiylKVev" />
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@@ -12130,7 +10964,7 @@
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                         </node>
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-                      <node concept="raruj" id="6YKq674Bpg9" role="lGtFl" />
+                      <node concept="raruj" id="452KZTby6Og" role="lGtFl" />
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@@ -12166,32 +11000,33 @@
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               <property role="2bfB8j" value="true" />
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-                  <property role="TrG5h" value="component" />
-                  <node concept="3uibUv" id="6YKq674Bsua" role="2lK19J">
+              <node concept="312cEu" id="452KZTby6YJ" role="jymVt">
+                <property role="2bfB8j" value="false" />
+                <property role="TrG5h" value="Variables" />
+                <node concept="312cEg" id="452KZTby6YK" role="jymVt">
+                  <property role="TrG5h" value="var" />
+                  <node concept="3Tm1VV" id="452KZTby6YL" role="1B3o_S" />
+                  <node concept="3uibUv" id="452KZTby6YM" role="1tU5fm">
                     <ref role="3uigEE" to="wyt6:~Object" resolve="Object" />
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                 </node>
-                <node concept="3Tm6S6" id="6YKq674FHv7" role="1B3o_S" />
+                <node concept="3Tm6S6" id="452KZTby6YN" role="1B3o_S" />
               </node>
               <node concept="2tJIrI" id="6YKq674Bw$Q" role="jymVt" />
               <node concept="3clFb_" id="6YKq674Bwgr" role="jymVt">
                 <property role="TrG5h" value="method" />
                 <node concept="37vLTG" id="6YKq674Bwgs" role="3clF46">
-                  <property role="TrG5h" value="context" />
-                  <node concept="2pR195" id="6YKq674Bwgt" role="1tU5fm">
-                    <ref role="3uigEE" node="6YKq674BouH" resolve="Context.Tuple" />
+                  <property role="TrG5h" value="variables" />
+                  <node concept="3uibUv" id="452KZTby75S" role="1tU5fm">
+                    <ref role="3uigEE" node="452KZTby6YJ" resolve="Context.Variables" />
                   </node>
                 </node>
                 <node concept="3Tm1VV" id="6YKq674Bwgu" role="1B3o_S" />
                 <node concept="3clFbS" id="6YKq674Bwgv" role="3clF47">
                   <node concept="3clFbF" id="6YKq674Bwgw" role="3cqZAp">
-                    <node concept="2OqwBi" id="6YKq674Bwgx" role="3clFbG">
+                    <node concept="2OqwBi" id="452KZTby7sv" role="3clFbG">
                       <node concept="37vLTw" id="6YKq674Bwgy" role="2Oq$k0">
-                        <ref role="3cqZAo" node="6YKq674Bwgs" resolve="context" />
+                        <ref role="3cqZAo" node="6YKq674Bwgs" resolve="variables" />
                         <node concept="1ZhdrF" id="6YKq674Bwgz" role="lGtFl">
                           <property role="P3scX" value="f3061a53-9226-4cc5-a443-f952ceaf5816/1068498886296/1068581517664" />
                           <property role="2qtEX8" value="variableDeclaration" />
@@ -12201,7 +11036,7 @@
                                 <node concept="2OqwBi" id="6YKq674Bx2h" role="3clFbG">
                                   <node concept="1iwH7S" id="6YKq674Bx2i" role="2Oq$k0" />
                                   <node concept="1iwH70" id="6YKq674Bx2j" role="2OqNvi">
-                                    <ref role="1iwH77" node="7t5VLKH5rUl" resolve="condition_context_parameter" />
+                                    <ref role="1iwH77" node="452KZTbxRHd" resolve="condition_variables_parameter" />
                                     <node concept="2OqwBi" id="6YKq674Bx2k" role="1iwH7V">
                                       <node concept="30H73N" id="6YKq674Bx2l" role="2Oq$k0" />
                                       <node concept="2Xjw5R" id="6YKq674Bx2m" role="2OqNvi">
@@ -12219,21 +11054,21 @@
                           </node>
                         </node>
                       </node>
-                      <node concept="2sxana" id="6YKq674BwgJ" role="2OqNvi">
-                        <ref role="2sxfKC" node="6YKq674Bo$p" resolve="component" />
-                        <node concept="1ZhdrF" id="6YKq674BwgK" role="lGtFl">
-                          <property role="P3scX" value="a247e09e-2435-45ba-b8d2-07e93feba96a/1239576519914/1239576542472" />
-                          <property role="2qtEX8" value="component" />
-                          <node concept="3$xsQk" id="6YKq674BwgL" role="3$ytzL">
-                            <node concept="3clFbS" id="6YKq674BwgM" role="2VODD2">
-                              <node concept="3clFbF" id="6YKq674BwgN" role="3cqZAp">
-                                <node concept="2OqwBi" id="6YKq674BwgO" role="3clFbG">
-                                  <node concept="1iwH7S" id="6YKq674BwgP" role="2Oq$k0" />
-                                  <node concept="1iwH70" id="6YKq674BwgQ" role="2OqNvi">
-                                    <ref role="1iwH77" node="6YKq674y9p5" resolve="letValue_tupleComponent" />
-                                    <node concept="2OqwBi" id="6YKq674BwgR" role="1iwH7V">
-                                      <node concept="30H73N" id="6YKq674BwgS" role="2Oq$k0" />
-                                      <node concept="3TrEf2" id="6YKq674BwgT" role="2OqNvi">
+                      <node concept="2OwXpG" id="452KZTby7zg" role="2OqNvi">
+                        <ref role="2Oxat5" node="452KZTby6YK" resolve="var" />
+                        <node concept="1ZhdrF" id="452KZTby7Ay" role="lGtFl">
+                          <property role="P3scX" value="f3061a53-9226-4cc5-a443-f952ceaf5816/1197029447546/1197029500499" />
+                          <property role="2qtEX8" value="fieldDeclaration" />
+                          <node concept="3$xsQk" id="452KZTby7Az" role="3$ytzL">
+                            <node concept="3clFbS" id="452KZTby7A$" role="2VODD2">
+                              <node concept="3clFbF" id="452KZTby7IX" role="3cqZAp">
+                                <node concept="2OqwBi" id="452KZTby7IY" role="3clFbG">
+                                  <node concept="1iwH7S" id="452KZTby7IZ" role="2Oq$k0" />
+                                  <node concept="1iwH70" id="452KZTby7J0" role="2OqNvi">
+                                    <ref role="1iwH77" node="452KZTbtjYV" resolve="letValue_field" />
+                                    <node concept="2OqwBi" id="452KZTby7J1" role="1iwH7V">
+                                      <node concept="30H73N" id="452KZTby7J2" role="2Oq$k0" />
+                                      <node concept="3TrEf2" id="452KZTby7J3" role="2OqNvi">
                                         <ref role="3Tt5mk" to="wq2x:5MHpiylKVev" />
                                       </node>
                                     </node>
@@ -12244,7 +11079,7 @@
                           </node>
                         </node>
                       </node>
-                      <node concept="raruj" id="6YKq674BwgU" role="lGtFl" />
+                      <node concept="raruj" id="452KZTby80o" role="lGtFl" />
                     </node>
                   </node>
                 </node>
@@ -12280,32 +11115,33 @@
             <node concept="312cEu" id="6YKq674By7L" role="1Koe22">
               <property role="2bfB8j" value="true" />
               <property role="TrG5h" value="Context" />
-              <node concept="2fD8I5" id="6YKq674By7M" role="jymVt">
-                <property role="TrG5h" value="Tuple" />
-                <node concept="2lGYhJ" id="6YKq674By7N" role="2pHZQ9">
-                  <property role="3dDGau" value="false" />
-                  <property role="TrG5h" value="component" />
-                  <node concept="3uibUv" id="6YKq674By7O" role="2lK19J">
+              <node concept="312cEu" id="452KZTby87t" role="jymVt">
+                <property role="2bfB8j" value="false" />
+                <property role="TrG5h" value="Variables" />
+                <node concept="312cEg" id="452KZTby87u" role="jymVt">
+                  <property role="TrG5h" value="var" />
+                  <node concept="3Tm1VV" id="452KZTby87v" role="1B3o_S" />
+                  <node concept="3uibUv" id="452KZTby87w" role="1tU5fm">
                     <ref role="3uigEE" to="wyt6:~Object" resolve="Object" />
                   </node>
                 </node>
-                <node concept="3Tm6S6" id="6YKq674FHv_" role="1B3o_S" />
+                <node concept="3Tm6S6" id="452KZTby87x" role="1B3o_S" />
               </node>
               <node concept="2tJIrI" id="6YKq674By7Q" role="jymVt" />
               <node concept="3clFb_" id="6YKq674By7R" role="jymVt">
                 <property role="TrG5h" value="method" />
                 <node concept="37vLTG" id="6YKq674By7S" role="3clF46">
-                  <property role="TrG5h" value="context" />
-                  <node concept="2pR195" id="6YKq674By7T" role="1tU5fm">
-                    <ref role="3uigEE" node="6YKq674BouH" resolve="Context.Tuple" />
+                  <property role="TrG5h" value="variables" />
+                  <node concept="3uibUv" id="452KZTby8eD" role="1tU5fm">
+                    <ref role="3uigEE" node="452KZTby87t" resolve="Context.Variables" />
                   </node>
                 </node>
                 <node concept="3Tm1VV" id="6YKq674By7U" role="1B3o_S" />
                 <node concept="3clFbS" id="6YKq674By7V" role="3clF47">
                   <node concept="3clFbF" id="6YKq674By7W" role="3cqZAp">
-                    <node concept="2OqwBi" id="6YKq674By7X" role="3clFbG">
+                    <node concept="2OqwBi" id="452KZTby8$X" role="3clFbG">
                       <node concept="37vLTw" id="6YKq674By7Y" role="2Oq$k0">
-                        <ref role="3cqZAo" node="6YKq674By7S" resolve="context" />
+                        <ref role="3cqZAo" node="6YKq674By7S" resolve="variables" />
                         <node concept="1ZhdrF" id="6YKq674By7Z" role="lGtFl">
                           <property role="P3scX" value="f3061a53-9226-4cc5-a443-f952ceaf5816/1068498886296/1068581517664" />
                           <property role="2qtEX8" value="variableDeclaration" />
@@ -12315,7 +11151,7 @@
                                 <node concept="2OqwBi" id="6YKq674ByIn" role="3clFbG">
                                   <node concept="1iwH7S" id="6YKq674ByIo" role="2Oq$k0" />
                                   <node concept="1iwH70" id="6YKq674ByIp" role="2OqNvi">
-                                    <ref role="1iwH77" node="6YKq674wlCh" resolve="required_context_parameter" />
+                                    <ref role="1iwH77" node="452KZTbtHI2" resolve="required_variables_parameter" />
                                     <node concept="2OqwBi" id="6YKq674ByIq" role="1iwH7V">
                                       <node concept="30H73N" id="6YKq674ByIr" role="2Oq$k0" />
                                       <node concept="2Xjw5R" id="6YKq674ByIs" role="2OqNvi">
@@ -12333,21 +11169,21 @@
                           </node>
                         </node>
                       </node>
-                      <node concept="2sxana" id="6YKq674By8b" role="2OqNvi">
-                        <ref role="2sxfKC" node="6YKq674Bo$p" resolve="component" />
-                        <node concept="1ZhdrF" id="6YKq674By8c" role="lGtFl">
-                          <property role="P3scX" value="a247e09e-2435-45ba-b8d2-07e93feba96a/1239576519914/1239576542472" />
-                          <property role="2qtEX8" value="component" />
-                          <node concept="3$xsQk" id="6YKq674By8d" role="3$ytzL">
-                            <node concept="3clFbS" id="6YKq674By8e" role="2VODD2">
-                              <node concept="3clFbF" id="6YKq674By8f" role="3cqZAp">
-                                <node concept="2OqwBi" id="6YKq674By8g" role="3clFbG">
-                                  <node concept="1iwH7S" id="6YKq674By8h" role="2Oq$k0" />
-                                  <node concept="1iwH70" id="6YKq674By8i" role="2OqNvi">
-                                    <ref role="1iwH77" node="6YKq674y9p5" resolve="letValue_tupleComponent" />
-                                    <node concept="2OqwBi" id="6YKq674By8j" role="1iwH7V">
-                                      <node concept="30H73N" id="6YKq674By8k" role="2Oq$k0" />
-                                      <node concept="3TrEf2" id="6YKq674By8l" role="2OqNvi">
+                      <node concept="2OwXpG" id="452KZTby8FI" role="2OqNvi">
+                        <ref role="2Oxat5" node="452KZTby87u" resolve="var" />
+                        <node concept="1ZhdrF" id="452KZTby8J0" role="lGtFl">
+                          <property role="P3scX" value="f3061a53-9226-4cc5-a443-f952ceaf5816/1197029447546/1197029500499" />
+                          <property role="2qtEX8" value="fieldDeclaration" />
+                          <node concept="3$xsQk" id="452KZTby8J1" role="3$ytzL">
+                            <node concept="3clFbS" id="452KZTby8J2" role="2VODD2">
+                              <node concept="3clFbF" id="452KZTby8Nt" role="3cqZAp">
+                                <node concept="2OqwBi" id="452KZTby8Nu" role="3clFbG">
+                                  <node concept="1iwH7S" id="452KZTby8Nv" role="2Oq$k0" />
+                                  <node concept="1iwH70" id="452KZTby8Nw" role="2OqNvi">
+                                    <ref role="1iwH77" node="452KZTbtjYV" resolve="letValue_field" />
+                                    <node concept="2OqwBi" id="452KZTby8Nx" role="1iwH7V">
+                                      <node concept="30H73N" id="452KZTby8Ny" role="2Oq$k0" />
+                                      <node concept="3TrEf2" id="452KZTby8Nz" role="2OqNvi">
                                         <ref role="3Tt5mk" to="wq2x:5MHpiylKVev" />
                                       </node>
                                     </node>
@@ -12358,7 +11194,7 @@
                           </node>
                         </node>
                       </node>
-                      <node concept="raruj" id="6YKq674By8m" role="lGtFl" />
+                      <node concept="raruj" id="452KZTby981" role="lGtFl" />
                     </node>
                   </node>
                 </node>
@@ -12394,32 +11230,33 @@
             <node concept="312cEu" id="6YKq674BBTD" role="1Koe22">
               <property role="2bfB8j" value="true" />
               <property role="TrG5h" value="Context" />
-              <node concept="2fD8I5" id="6YKq674BBTE" role="jymVt">
-                <property role="TrG5h" value="Tuple" />
-                <node concept="2lGYhJ" id="6YKq674BBTF" role="2pHZQ9">
-                  <property role="3dDGau" value="false" />
-                  <property role="TrG5h" value="component" />
-                  <node concept="3uibUv" id="6YKq674BBTG" role="2lK19J">
+              <node concept="312cEu" id="452KZTby9i$" role="jymVt">
+                <property role="2bfB8j" value="false" />
+                <property role="TrG5h" value="Variables" />
+                <node concept="312cEg" id="452KZTby9i_" role="jymVt">
+                  <property role="TrG5h" value="var" />
+                  <node concept="3Tm1VV" id="452KZTby9iA" role="1B3o_S" />
+                  <node concept="3uibUv" id="452KZTby9iB" role="1tU5fm">
                     <ref role="3uigEE" to="wyt6:~Object" resolve="Object" />
                   </node>
                 </node>
-                <node concept="3Tm6S6" id="6YKq674FH_T" role="1B3o_S" />
+                <node concept="3Tm6S6" id="452KZTby9iC" role="1B3o_S" />
               </node>
               <node concept="2tJIrI" id="6YKq674BBTI" role="jymVt" />
               <node concept="3clFb_" id="6YKq674BBTJ" role="jymVt">
                 <property role="TrG5h" value="method" />
                 <node concept="37vLTG" id="6YKq674BBTK" role="3clF46">
-                  <property role="TrG5h" value="context" />
-                  <node concept="2pR195" id="6YKq674BBTL" role="1tU5fm">
-                    <ref role="3uigEE" node="6YKq674BouH" resolve="Context.Tuple" />
+                  <property role="TrG5h" value="variables" />
+                  <node concept="3uibUv" id="452KZTby9ti" role="1tU5fm">
+                    <ref role="3uigEE" node="452KZTby9i$" resolve="Context.Variables" />
                   </node>
                 </node>
                 <node concept="3Tm1VV" id="6YKq674BBTM" role="1B3o_S" />
                 <node concept="3clFbS" id="6YKq674BBTN" role="3clF47">
                   <node concept="3clFbF" id="6YKq674BBTO" role="3cqZAp">
-                    <node concept="2OqwBi" id="6YKq674BBTP" role="3clFbG">
+                    <node concept="2OqwBi" id="452KZTby9Nq" role="3clFbG">
                       <node concept="37vLTw" id="6YKq674BBTQ" role="2Oq$k0">
-                        <ref role="3cqZAo" node="6YKq674BBTK" resolve="context" />
+                        <ref role="3cqZAo" node="6YKq674BBTK" resolve="variables" />
                         <node concept="1ZhdrF" id="6YKq674BBTR" role="lGtFl">
                           <property role="P3scX" value="f3061a53-9226-4cc5-a443-f952ceaf5816/1068498886296/1068581517664" />
                           <property role="2qtEX8" value="variableDeclaration" />
@@ -12429,7 +11266,7 @@
                                 <node concept="2OqwBi" id="6YKq674BBTV" role="3clFbG">
                                   <node concept="1iwH7S" id="6YKq674BBTW" role="2Oq$k0" />
                                   <node concept="1iwH70" id="6YKq674BBTX" role="2OqNvi">
-                                    <ref role="1iwH77" node="6YKq674wxI1" resolve="initContext_context_parameter" />
+                                    <ref role="1iwH77" node="452KZTbspLe" resolve="initContext_variables_parameter" />
                                     <node concept="2OqwBi" id="6YKq674BBTY" role="1iwH7V">
                                       <node concept="30H73N" id="6YKq674BBTZ" role="2Oq$k0" />
                                       <node concept="2Xjw5R" id="6YKq674BBU0" role="2OqNvi">
@@ -12447,21 +11284,21 @@
                           </node>
                         </node>
                       </node>
-                      <node concept="2sxana" id="6YKq674BBU3" role="2OqNvi">
-                        <ref role="2sxfKC" node="6YKq674Bo$p" resolve="component" />
-                        <node concept="1ZhdrF" id="6YKq674BBU4" role="lGtFl">
-                          <property role="P3scX" value="a247e09e-2435-45ba-b8d2-07e93feba96a/1239576519914/1239576542472" />
-                          <property role="2qtEX8" value="component" />
-                          <node concept="3$xsQk" id="6YKq674BBU5" role="3$ytzL">
-                            <node concept="3clFbS" id="6YKq674BBU6" role="2VODD2">
-                              <node concept="3clFbF" id="6YKq674BBU7" role="3cqZAp">
-                                <node concept="2OqwBi" id="6YKq674BBU8" role="3clFbG">
-                                  <node concept="1iwH7S" id="6YKq674BBU9" role="2Oq$k0" />
-                                  <node concept="1iwH70" id="6YKq674BBUa" role="2OqNvi">
-                                    <ref role="1iwH77" node="6YKq674y9p5" resolve="letValue_tupleComponent" />
-                                    <node concept="2OqwBi" id="6YKq674BBUb" role="1iwH7V">
-                                      <node concept="30H73N" id="6YKq674BBUc" role="2Oq$k0" />
-                                      <node concept="3TrEf2" id="6YKq674BBUd" role="2OqNvi">
+                      <node concept="2OwXpG" id="452KZTby9Xv" role="2OqNvi">
+                        <ref role="2Oxat5" node="452KZTby9i_" resolve="var" />
+                        <node concept="1ZhdrF" id="452KZTbya0L" role="lGtFl">
+                          <property role="P3scX" value="f3061a53-9226-4cc5-a443-f952ceaf5816/1197029447546/1197029500499" />
+                          <property role="2qtEX8" value="fieldDeclaration" />
+                          <node concept="3$xsQk" id="452KZTbya0M" role="3$ytzL">
+                            <node concept="3clFbS" id="452KZTbya0N" role="2VODD2">
+                              <node concept="3clFbF" id="452KZTbya9X" role="3cqZAp">
+                                <node concept="2OqwBi" id="452KZTbya9Y" role="3clFbG">
+                                  <node concept="1iwH7S" id="452KZTbya9Z" role="2Oq$k0" />
+                                  <node concept="1iwH70" id="452KZTbyaa0" role="2OqNvi">
+                                    <ref role="1iwH77" node="452KZTbtjYV" resolve="letValue_field" />
+                                    <node concept="2OqwBi" id="452KZTbyaa1" role="1iwH7V">
+                                      <node concept="30H73N" id="452KZTbyaa2" role="2Oq$k0" />
+                                      <node concept="3TrEf2" id="452KZTbyaa3" role="2OqNvi">
                                         <ref role="3Tt5mk" to="wq2x:5MHpiylKVev" />
                                       </node>
                                     </node>
@@ -12472,7 +11309,7 @@
                           </node>
                         </node>
                       </node>
-                      <node concept="raruj" id="6YKq674BBUe" role="lGtFl" />
+                      <node concept="raruj" id="452KZTbyaqd" role="lGtFl" />
                     </node>
                   </node>
                 </node>
@@ -12493,140 +11330,166 @@
       </node>
     </node>
   </node>
-  <node concept="jVnub" id="6YKq674nLGs">
+  <node concept="jVnub" id="452KZTbs$z9">
     <property role="3GE5qa" value="context" />
-    <property role="TrG5h" value="logical_tuple_extends" />
-    <node concept="3aamgX" id="6YKq674nLGt" role="3aUrZf">
-      <property role="36QftV" value="true" />
-      <ref role="30HIoZ" to="wq2x:7eGEHDlgPU4" resolve="Rule" />
-      <node concept="1Koe21" id="6YKq674nPsJ" role="1lVwrX">
-        <node concept="312cEu" id="6YKq674nP$9" role="1Koe22">
-          <property role="2bfB8j" value="true" />
-          <property role="TrG5h" value="Context" />
-          <node concept="2tJIrI" id="6YKq674nP$q" role="jymVt" />
-          <node concept="2fD8I5" id="6YKq674nP$_" role="jymVt">
-            <property role="TrG5h" value="Tuple" />
-            <node concept="2lGYhJ" id="6YKq674nP$P" role="2pHZQ9">
-              <property role="3dDGau" value="false" />
-              <property role="TrG5h" value="logical" />
-              <node concept="3uibUv" id="6YKq674nP_5" role="2lK19J">
-                <ref role="3uigEE" to="yg8f:1mP5b6jQP$C" resolve="ILogical" />
-              </node>
-            </node>
-            <node concept="3Tm6S6" id="6YKq674nP_a" role="1B3o_S" />
-          </node>
-          <node concept="2tJIrI" id="6YKq674nP_g" role="jymVt" />
-          <node concept="312cEg" id="6YKq674nP_B" role="jymVt">
-            <property role="TrG5h" value="field" />
-            <node concept="3Tm6S6" id="6YKq674nP_C" role="1B3o_S" />
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               <property role="TrG5h" value="input" />
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+                                <node concept="1iwH70" id="452KZTbtjxD" role="2OqNvi">
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+                                  <node concept="2OqwBi" id="452KZTbtjSm" role="1iwH7V">
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+                                        </node>
+                                      </node>
+                                    </node>
+                                  </node>
+                                </node>
+                              </node>
+                            </node>
+                          </node>
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+                        <property role="2qtEX8" value="fieldDeclaration" />
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+                                <node concept="1iwH70" id="452KZTbtlfd" role="2OqNvi">
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+                                  <node concept="30H73N" id="452KZTbtlj8" role="1iwH7V" />
+                                </node>
+                              </node>
+                            </node>
+                          </node>
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+                  <node concept="1rXfSq" id="452KZTbthxK" role="37vLTx">
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+                                <node concept="1iwH7S" id="452KZTbthxR" role="2Oq$k0" />
+                                <node concept="1iwH70" id="452KZTbthxS" role="2OqNvi">
+                                  <ref role="1iwH77" node="PB1R3YtcNl" resolve="initContext_input_parameter" />
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+                                    <node concept="30H73N" id="452KZTbthxU" role="2Oq$k0" />
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+                                      <node concept="1xMEDy" id="452KZTbthxW" role="1xVPHs">
+                                        <node concept="chp4Y" id="452KZTbthxX" role="ri$Ld">
+                                          <ref role="cht4Q" to="wq2x:4EfgX2ET3GH" resolve="AbstractRule" />
+                                        </node>
+                                      </node>
+                                    </node>
+                                  </node>
+                                </node>
+                              </node>
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+                          </node>
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+                        <node concept="3clFbS" id="452KZTbthy0" role="2VODD2">
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+                              <node concept="1iwH70" id="452KZTbthy4" role="2OqNvi">
+                                <ref role="1iwH77" node="6YKq674yOJr" resolve="rule_letValue_method" />
+                                <node concept="2OqwBi" id="452KZTbthy5" role="1iwH7V">
+                                  <node concept="30H73N" id="452KZTbthy6" role="2Oq$k0" />
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+                                        <ref role="cht4Q" to="wq2x:4EfgX2ET3GH" resolve="AbstractRule" />
+                                      </node>
+                                    </node>
+                                  </node>
+                                </node>
                               </node>
                             </node>
                           </node>
@@ -12635,93 +11498,170 @@
                     </node>
                   </node>
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@@ -12730,91 +11670,350 @@
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+                      <node concept="Xl_RD" id="452KZTbs$BX" role="37wK5m">
+                        <property role="Xl_RC" value="T" />
+                        <node concept="17Uvod" id="452KZTbs$BY" role="lGtFl">
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+                          <property role="P4ACc" value="f3061a53-9226-4cc5-a443-f952ceaf5816/1070475926800/1070475926801" />
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+                                    <ref role="3TsBF5" to="tpck:h0TrG11" resolve="name" />
+                                  </node>
+                                </node>
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@@ -12823,15 +12022,502 @@
                     </node>
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+          <node concept="3clFbF" id="452KZTbxZdH" role="3cqZAp">
+            <node concept="2OqwBi" id="452KZTbxZdI" role="3clFbG">
+              <node concept="2OqwBi" id="452KZTbxZdJ" role="2Oq$k0">
+                <node concept="30H73N" id="452KZTbxZdK" role="2Oq$k0" />
+                <node concept="3TrEf2" id="452KZTbxZdL" role="2OqNvi">
+                  <ref role="3Tt5mk" to="5j4j:7E86$tKsJfa" />
+                </node>
+              </node>
+              <node concept="3x8VRR" id="452KZTbxZdM" role="2OqNvi" />
+            </node>
+          </node>
+        </node>
+      </node>
+    </node>
+    <node concept="j$LIH" id="452KZTbxZdN" role="jxRDz">
+      <node concept="1lLz0L" id="452KZTbxZdO" role="1lHHLF">
         <property role="1lMjX7" value="error" />
         <property role="1lLB17" value="invalid usage" />
       </node>
diff --git a/languages/jetbrains.mps.lang.typesystem2/template/models/jetbrains/mps/lang/typesystem2/template.mps b/languages/jetbrains.mps.lang.typesystem2/template/models/jetbrains/mps/lang/typesystem2/template.mps
index 37f56be6..ea98a8f5 100644
--- a/languages/jetbrains.mps.lang.typesystem2/template/models/jetbrains/mps/lang/typesystem2/template.mps
+++ b/languages/jetbrains.mps.lang.typesystem2/template/models/jetbrains/mps/lang/typesystem2/template.mps
@@ -92,6 +92,10 @@
       <concept id="1070534760951" name="jetbrains.mps.baseLanguage.structure.ArrayType" flags="in" index="10Q1$e">
         <child id="1070534760952" name="componentType" index="10Q1$1" />
       </concept>
+      <concept id="1070534934090" name="jetbrains.mps.baseLanguage.structure.CastExpression" flags="nn" index="10QFUN">
+        <child id="1070534934091" name="type" index="10QFUM" />
+        <child id="1070534934092" name="expression" index="10QFUP" />
+      </concept>
       <concept id="1068390468200" name="jetbrains.mps.baseLanguage.structure.FieldDeclaration" flags="ig" index="312cEg" />
       <concept id="1068390468198" name="jetbrains.mps.baseLanguage.structure.ClassConcept" flags="ig" index="312cEu">
         <property id="1075300953594" name="abstractClass" index="1sVAO0" />
@@ -159,6 +163,7 @@
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
+      <concept id="1073063089578" name="jetbrains.mps.baseLanguage.structure.SuperMethodCall" flags="nn" index="3nyPlj" />
       <concept id="1212685548494" name="jetbrains.mps.baseLanguage.structure.ClassCreator" flags="nn" index="1pGfFk">
         <child id="1212687122400" name="typeParameter" index="1pMfVU" />
       </concept>
@@ -2654,7 +2659,77 @@
         <ref role="2AI5Lk" to="wyt6:~Override" resolve="Override" />
       </node>
     </node>
-    <node concept="2tJIrI" id="1ffsG7bXbBq" role="jymVt" />
+    <node concept="2tJIrI" id="452KZTbwlFS" role="jymVt" />
+    <node concept="3clFb_" id="452KZTbwmcF" role="jymVt">
+      <property role="TrG5h" value="prototype" />
+      <property role="1EzhhJ" value="false" />
+      <node concept="3uibUv" id="452KZTbwmcG" role="3clF45">
+        <ref role="3uigEE" node="1ffsG7bXcuq" resolve="IteratingRuleTemplate" />
+        <node concept="3qUtgH" id="452KZTbwmcH" role="11_B2D">
+          <node concept="16syzq" id="452KZTbwmcN" role="3qUvdb">
+            <ref role="16sUi3" node="1ffsG7bX2zU" resolve="Context" />
+          </node>
+        </node>
+        <node concept="16syzq" id="452KZTbwpmR" role="11_B2D">
+          <ref role="16sUi3" node="1ffsG7bX2$8" resolve="Iter" />
+        </node>
+      </node>
+      <node concept="3Tmbuc" id="452KZTbwmcJ" role="1B3o_S" />
+      <node concept="3clFbS" id="452KZTbwmcO" role="3clF47">
+        <node concept="3clFbF" id="452KZTbwmcR" role="3cqZAp">
+          <node concept="10QFUN" id="452KZTbwp_X" role="3clFbG">
+            <node concept="3nyPlj" id="452KZTbwp_W" role="10QFUP">
+              <ref role="37wK5l" node="2JQZWxFbti8" resolve="prototype" />
+            </node>
+            <node concept="3uibUv" id="452KZTbwq5G" role="10QFUM">
+              <ref role="3uigEE" node="1ffsG7bXcuq" resolve="IteratingRuleTemplate" />
+              <node concept="3qUtgH" id="452KZTbwq5H" role="11_B2D">
+                <node concept="16syzq" id="452KZTbwq5I" role="3qUvdb">
+                  <ref role="16sUi3" node="1ffsG7bX2zU" resolve="Context" />
+                </node>
+              </node>
+              <node concept="16syzq" id="452KZTbwq5J" role="11_B2D">
+                <ref role="16sUi3" node="1ffsG7bX2$8" resolve="Iter" />
+              </node>
+            </node>
+          </node>
+        </node>
+      </node>
+      <node concept="2AHcQZ" id="452KZTbwmcP" role="2AJF6D">
+        <ref role="2AI5Lk" to="wyt6:~Override" resolve="Override" />
+      </node>
+    </node>
+    <node concept="2tJIrI" id="452KZTbwqIb" role="jymVt" />
+    <node concept="3clFb_" id="452KZTbwree" role="jymVt">
+      <property role="TrG5h" value="prototype" />
+      <property role="1EzhhJ" value="false" />
+      <node concept="3cqZAl" id="452KZTbwref" role="3clF45" />
+      <node concept="3Tmbuc" id="452KZTbwreg" role="1B3o_S" />
+      <node concept="37vLTG" id="452KZTbwreo" role="3clF46">
+        <property role="TrG5h" value="prototype" />
+        <node concept="3uibUv" id="452KZTbwtwY" role="1tU5fm">
+          <ref role="3uigEE" node="1ffsG7bXcuq" resolve="IteratingRuleTemplate" />
+          <node concept="3qUtgH" id="452KZTbwtwZ" role="11_B2D">
+            <node concept="16syzq" id="452KZTbwtx0" role="3qUvdb">
+              <ref role="16sUi3" node="1ffsG7bX2zU" resolve="Context" />
+            </node>
+          </node>
+          <node concept="16syzq" id="452KZTbwtx1" role="11_B2D">
+            <ref role="16sUi3" node="1ffsG7bX2$8" resolve="Iter" />
+          </node>
+        </node>
+      </node>
+      <node concept="3clFbS" id="452KZTbwret" role="3clF47">
+        <node concept="3clFbF" id="452KZTbwrex" role="3cqZAp">
+          <node concept="3nyPlj" id="452KZTbwrew" role="3clFbG">
+            <ref role="37wK5l" node="2JQZWxFc1xW" resolve="prototype" />
+            <node concept="37vLTw" id="452KZTbwrev" role="37wK5m">
+              <ref role="3cqZAo" node="452KZTbwreo" resolve="prototype" />
+            </node>
+          </node>
+        </node>
+      </node>
+    </node>
     <node concept="3Tm1VV" id="1ffsG7bX1MT" role="1B3o_S" />
     <node concept="3uibUv" id="1ffsG7bX2a9" role="1zkMxy">
       <ref role="3uigEE" node="1ffsG7bUbCM" resolve="BaseRuleTemplate" />