wip
diff --git a/plugins/org.eclipse.qvtd.xtext.qvtrelation/src/org/eclipse/qvtd/xtext/qvtrelation/cs2as/QVTrelationCSLeft2RightVisitor.java b/plugins/org.eclipse.qvtd.xtext.qvtrelation/src/org/eclipse/qvtd/xtext/qvtrelation/cs2as/QVTrelationCSLeft2RightVisitor.java
index 15b5270..be89d65 100644
--- a/plugins/org.eclipse.qvtd.xtext.qvtrelation/src/org/eclipse/qvtd/xtext/qvtrelation/cs2as/QVTrelationCSLeft2RightVisitor.java
+++ b/plugins/org.eclipse.qvtd.xtext.qvtrelation/src/org/eclipse/qvtd/xtext/qvtrelation/cs2as/QVTrelationCSLeft2RightVisitor.java
@@ -35,8 +35,10 @@
 import org.eclipse.ocl.xtext.base.cs2as.CS2AS;
 import org.eclipse.ocl.xtext.base.cs2as.CS2ASConversion;
 import org.eclipse.ocl.xtext.basecs.ElementCS;
+import org.eclipse.ocl.xtext.basecs.ModelElementCS;
 import org.eclipse.ocl.xtext.basecs.PathNameCS;
 import org.eclipse.ocl.xtext.essentialocl.cs2as.ImplicitSourceTypeIterator;
+import org.eclipse.ocl.xtext.essentialocl.cs2as.ImplicitSourceVariableIterator;
 import org.eclipse.ocl.xtext.essentialoclcs.AbstractNameExpCS;
 import org.eclipse.ocl.xtext.essentialoclcs.ExpCS;
 import org.eclipse.ocl.xtext.essentialoclcs.NameExpCS;
@@ -47,6 +49,7 @@
 import org.eclipse.qvtd.pivot.qvtbase.Function;
 import org.eclipse.qvtd.pivot.qvtbase.Rule;
 import org.eclipse.qvtd.pivot.qvtbase.Transformation;
+import org.eclipse.qvtd.pivot.qvtbase.utilities.QVTbaseUtil;
 import org.eclipse.qvtd.pivot.qvtrelation.QVTrelationPackage;
 import org.eclipse.qvtd.pivot.qvtrelation.Relation;
 import org.eclipse.qvtd.pivot.qvtrelation.RelationCallExp;
@@ -102,6 +105,26 @@
 	}
 
 	@Override
+	protected @NonNull ImplicitSourceVariableIterator createImplicitSourceVariableIterator(@NonNull ModelElementCS csElement) {
+		return new ImplicitSourceVariableIterator(csElement)
+		{
+			@Override
+			protected boolean doNext(@NonNull ElementCS csParent, @NonNull ElementCS csChild) {
+				if (csParent instanceof TransformationCS) {
+					Transformation asContext = PivotUtil.getPivot(Transformation.class, (TransformationCS)csParent);
+					if (asContext != null) {
+						addNext(QVTbaseUtil.getContextVariable(standardLibrary, asContext));
+					}
+					return DONE; // no more parents
+				}
+				else {
+					return super.doNext(csParent, csChild);
+				}
+			}
+		};
+	}
+
+	@Override
 	protected ImplicitSourceTypeIterator createImplicitSourceTypeIterator(@NonNull ElementCS csElement) {
 		return new ImplicitSourceTypeIterator(csElement)
 		{
diff --git a/plugins/org.eclipse.qvtd.xtext.qvtrelation/src/org/eclipse/qvtd/xtext/qvtrelation/utilities/QVTrelation.java b/plugins/org.eclipse.qvtd.xtext.qvtrelation/src/org/eclipse/qvtd/xtext/qvtrelation/utilities/QVTrelation.java
new file mode 100644
index 0000000..8402054
--- /dev/null
+++ b/plugins/org.eclipse.qvtd.xtext.qvtrelation/src/org/eclipse/qvtd/xtext/qvtrelation/utilities/QVTrelation.java
@@ -0,0 +1,42 @@
+/*******************************************************************************
+ * Copyright (c) 2015 Willink Transformations and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     E.D.Willink - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.qvtd.xtext.qvtrelation.utilities;
+
+import org.eclipse.emf.ecore.resource.ResourceSet;
+import org.eclipse.jdt.annotation.NonNull;
+import org.eclipse.jdt.annotation.Nullable;
+import org.eclipse.ocl.pivot.resource.ProjectManager;
+import org.eclipse.qvtd.pivot.qvtbase.utilities.QVTbase;
+import org.eclipse.qvtd.pivot.qvtbase.utilities.QVTbaseEnvironmentFactory;
+
+/**
+ * The QVTimperative facade refines the QVTbase and OCL facades to enforce use of the QVTimperative Standard Library.
+ */
+public class QVTrelation extends QVTbase
+{
+	public static @NonNull QVTrelation newInstance(@NonNull ProjectManager projectManager, @Nullable ResourceSet externalResourceSet) {	
+		QVTbaseEnvironmentFactory environmentFactory = new QVTbaseEnvironmentFactory(projectManager, externalResourceSet);
+		QVTrelation qvt = new QVTrelation(environmentFactory);
+		if (externalResourceSet != null) {
+			environmentFactory.adapt(externalResourceSet);
+		}
+		return qvt;
+	}
+	
+	public QVTrelation(@NonNull QVTbaseEnvironmentFactory environmentFactory) {
+		super(environmentFactory);
+	}
+
+//	@Override
+//	public @NonNull QVTiEnvironmentFactory getEnvironmentFactory() {
+//		return (QVTiEnvironmentFactory) super.getEnvironmentFactory();
+//	}
+}
\ No newline at end of file
diff --git a/tests/org.eclipse.qvtd.xtext.qvtrelation.tests/src/org/eclipse/qvtd/xtext/qvtrelation/tests/LoadTests.java b/tests/org.eclipse.qvtd.xtext.qvtrelation.tests/src/org/eclipse/qvtd/xtext/qvtrelation/tests/LoadTests.java
index 4c05fa4..b5ab154 100644
--- a/tests/org.eclipse.qvtd.xtext.qvtrelation.tests/src/org/eclipse/qvtd/xtext/qvtrelation/tests/LoadTests.java
+++ b/tests/org.eclipse.qvtd.xtext.qvtrelation.tests/src/org/eclipse/qvtd/xtext/qvtrelation/tests/LoadTests.java
@@ -17,6 +17,7 @@
 import org.eclipse.ocl.pivot.utilities.OCL;
 import org.eclipse.ocl.xtext.base.services.BaseLinkingService;
 import org.eclipse.qvtd.xtext.qvtbase.tests.LoadTestCase;
+import org.eclipse.qvtd.xtext.qvtrelation.utilities.QVTrelation;
 
 /**
  * Tests that load a model and verify that there are no unresolved proxies as a result.
@@ -30,7 +31,7 @@
 	}
 
 	protected void doLoad_Concrete(URI inputURI, URI pivotURI) throws IOException {
-		OCL ocl = OCL.newInstance(getProjectMap());
+		OCL ocl = QVTrelation.newInstance(getProjectMap(), null);
 		doLoad_Concrete(ocl, inputURI, pivotURI);
 		ocl.dispose();
 	}