1 files changed, 4 insertions, 4 deletions

diff --git a/language-model/src/main/resources/model/problem.ecore b/language-model/src/main/resources/model/problem.ecore
index 77211b66..582f67c8 100644
--- a/language-model/src/main/resources/model/problem.ecore
+++ b/language-model/src/main/resources/model/problem.ecore
@@ -3,7 +3,7 @@
     xmlns:ecore="http://www.eclipse.org/emf/2002/Ecore" name="problem" nsURI="https://refinery.tools/emf/2021/Problem" nsPrefix="problem">
   <eClassifiers xsi:type="ecore:EClass" name="Problem" eSuperTypes="#//NamedElement">
     <eStructuralFeatures xsi:type="ecore:EReference" name="nodes" upperBound="-1"
-        eType="#//Node" containment="true"/>
+        eType="#//Node" transient="true" containment="true"/>
     <eStructuralFeatures xsi:type="ecore:EReference" name="statements" upperBound="-1"
         eType="#//Statement" containment="true"/>
   </eClassifiers>
@@ -15,7 +15,7 @@
     <eStructuralFeatures xsi:type="ecore:EReference" name="referenceDeclarations"
         upperBound="-1" eType="#//ReferenceDeclaration" containment="true"/>
     <eStructuralFeatures xsi:type="ecore:EReference" name="newNode" eType="#//Node"
-        containment="true"/>
+        transient="true" containment="true"/>
   </eClassifiers>
   <eClassifiers xsi:type="ecore:EClass" name="ReferenceDeclaration" eSuperTypes="#//Relation">
     <eStructuralFeatures xsi:type="ecore:EReference" name="referenceType" eType="#//Relation"/>
@@ -52,7 +52,7 @@
   <eClassifiers xsi:type="ecore:EClass" name="ExistentialQuantifier" abstract="true"
       interface="true">
     <eStructuralFeatures xsi:type="ecore:EReference" name="implicitVariables" upperBound="-1"
-        eType="#//ImplicitVariable" containment="true"/>
+        eType="#//ImplicitVariable" transient="true" containment="true"/>
   </eClassifiers>
   <eClassifiers xsi:type="ecore:EClass" name="Assertion" eSuperTypes="#//Statement">
     <eStructuralFeatures xsi:type="ecore:EReference" name="relation" eType="#//Relation"/>
@@ -95,7 +95,7 @@
   <eClassifiers xsi:type="ecore:EClass" name="VariableOrNodeArgument" eSuperTypes="#//Argument">
     <eStructuralFeatures xsi:type="ecore:EReference" name="variableOrNode" eType="#//VariableOrNode"/>
     <eStructuralFeatures xsi:type="ecore:EReference" name="singletonVariable" eType="#//ImplicitVariable"
-        containment="true"/>
+        transient="true" containment="true"/>
   </eClassifiers>
   <eClassifiers xsi:type="ecore:EClass" name="EnumDeclaration" eSuperTypes="#//Relation #//Statement">
     <eStructuralFeatures xsi:type="ecore:EReference" name="literals" upperBound="-1"