diff --git a/src/main/java/models/objectOrientedTransfer/Relation.java b/src/main/java/models/objectOrientedTransfer/Relation.java
index dfd7ba9..0cd68aa 100644
--- a/src/main/java/models/objectOrientedTransfer/Relation.java
+++ b/src/main/java/models/objectOrientedTransfer/Relation.java
@@ -10,7 +10,7 @@
 	private boolean isFlat = false;
 	private ObjectNode srcResourceNode;
 	private ObjectNode dstResourceNode;
-		
+
 	public Relation(List<ReferenceEdge> srcResource, List<ReferenceEdge> dstResource, MultiplicityValue multiplicity) {
 		isFlat = false;
 		this.srcResource = srcResource;
@@ -43,26 +43,10 @@
 		this.multiplicity = multiplicity;
 	}
 
-	public Relation(List<ReferenceEdge> srcResource, ObjectNode dstResourceNode, MultiplicityValue multiplicity) {
-		this.isFlat = true;
-		this.srcResource = srcResource;
-		this.dstResource = new ArrayList<>();
-		this.dstResourceNode = dstResourceNode;
-		this.multiplicity = multiplicity;
-	}
-
-	public Relation(ObjectNode srcResourceNode, List<ReferenceEdge> dstResource, MultiplicityValue multiplicity) {
-		this.isFlat = true;
-		this.srcResource = new ArrayList<>();
-		this.dstResource = dstResource;
-		this.srcResourceNode = srcResourceNode;
-		this.multiplicity = multiplicity;
-	}
-	
 	public boolean isFlat() {
 		return isFlat;
 	}
-	
+
 	public List<ReferenceEdge> getSrcResource() {
 		return srcResource;
 	}
@@ -70,14 +54,14 @@
 	public List<ReferenceEdge> getDstResource() {
 		return dstResource;
 	}
-	
+
 	public ObjectNode getSrcFirstResource() {
 		if (isFlat) {
 			return srcResourceNode;
 		}
 		return (ObjectNode) srcResource.getFirst().getSource();
 	}
-	
+
 	public ObjectNode getDstFirstResource() {
 		if (isFlat) {
 			return dstResourceNode;