             relationshipPropertyProperties.append(propertyRelationship.copy() as! NSRelationshipDescription)
             relationshipProperties.append(propertySetRelationship.copy() as! NSRelationshipDescription)
             
-            let group: NSAttributeDescription = NSAttributeDescription()
+            let group = NSAttributeDescription()
             group.name = "name"
             group.attributeType = .StringAttributeType
             group.optional = false

            relationshipSubjectSetRelationship.deleteRule = .NoActionDeleteRule
            relationshipSubjectSetRelationship.destinationEntity = entityDescription
            
            let relationshipSubjectRelationship: NSRelationshipDescription = NSRelationshipDescription()
            relationshipSubjectRelationship.name = "relationshipSubjectSet"
            relationshipSubjectRelationship.minCount = 0
            relationshipSubjectRelationship.maxCount = 0

            // Inverse relationship for Subjects -- E.
            
            // Inverse relationship for Objects -- B.
            let actionObjectSetRelationship = NSRelationshipDescription()
            actionObjectSetRelationship.name = "objectSet"
            actionObjectSetRelationship.minCount = 0
            actionObjectSetRelationship.maxCount = 0
