diff --git a/src/org/ntlab/traceDebugger/analyzerProvider/DeltaExtractor.java b/src/org/ntlab/traceDebugger/analyzerProvider/DeltaExtractor.java
index 7743db9..a323951 100644
--- a/src/org/ntlab/traceDebugger/analyzerProvider/DeltaExtractor.java
+++ b/src/org/ntlab/traceDebugger/analyzerProvider/DeltaExtractor.java
@@ -858,6 +858,7 @@
  
 	private ExtractedStructure extractSub(TracePoint creationTracePoint, Reference targetRef, IAliasCollector aliasCollector) {
 		eStructure = new ExtractedStructure();
+		eStructure.setRelatedTracePoint(creationTracePoint.duplicate());
 		ArrayList<String> objList = new ArrayList<String>(); 
 		srcObject = targetRef.getSrcObject();
 		dstObject = targetRef.getDstObject();
@@ -915,11 +916,12 @@
 	 * @return ���o����
 	 */
 	public ExtractedStructure extract(TracePoint thisTracePoint, ObjectReference anotherObj, IAliasCollector aliasCollector) {
+		eStructure = new ExtractedStructure();
+		eStructure.setRelatedTracePoint(thisTracePoint.duplicate());
 		MethodExecution methodExecution = thisTracePoint.getMethodExecution();
 		if (!thisTracePoint.isMethodEntry()) {
 			thisTracePoint.stepNext();
 		}
-		eStructure = new ExtractedStructure();
 		ArrayList<String> objList = new ArrayList<String>();
 		String thisObjectId = methodExecution.getThisObjId();
 		objList.add(thisObjectId);
diff --git a/src/org/ntlab/traceDebugger/analyzerProvider/DeltaExtractorJSON.java b/src/org/ntlab/traceDebugger/analyzerProvider/DeltaExtractorJSON.java
index ce5a559..22b60da 100644
--- a/src/org/ntlab/traceDebugger/analyzerProvider/DeltaExtractorJSON.java
+++ b/src/org/ntlab/traceDebugger/analyzerProvider/DeltaExtractorJSON.java
@@ -633,6 +633,7 @@
 						if (objectId.equals(srcObject.getId())) {
 							r = new Reference(arguments.get(0), srcObject);
 							r.setCollection(true);
+							r.setCreation(true);		// �߂�l�I�u�W�F�N�g�𐶐������Ƃ݂Ȃ�
 							eStructure.addSrcSide(r);
 							srcObject = arguments.get(0);
 							aliasCollector.changeTrackingObject(objectId, arguments.get(0).getId(), true);
@@ -640,6 +641,7 @@
 						} else if(objectId.equals(dstObject.getId())) {
 							r = new Reference(arguments.get(0), dstObject);
 							r.setCollection(true);
+							r.setCreation(true);		// �߂�l�I�u�W�F�N�g�𐶐������Ƃ݂Ȃ�
 							eStructure.addDstSide(r);
 							dstObject =arguments.get(0);
 							aliasCollector.changeTrackingObject(objectId, arguments.get(0).getId(), false);
@@ -652,6 +654,11 @@
 					if (objectId.equals(srcObject.getId())) {
 						r = new Reference(thisObj, srcObject);
 						r.setCollection(true);
+						if (methodExecution.getSignature().contains(".iterator()")
+								|| methodExecution.getSignature().contains(".listIterator()") 
+								|| methodExecution.getSignature().contains(".entrySet()")
+								|| methodExecution.getSignature().contains(".keySet()")
+								|| methodExecution.getSignature().contains(".values()")) r.setCreation(true);		// �C�e���[�^�I�u�W�F�N�g���𐶐������Ƃ݂Ȃ�
 						eStructure.addSrcSide(r);
 						srcObject = thisObj;
 						aliasCollector.changeTrackingObject(objectId, thisObjectId, true);
@@ -659,6 +666,11 @@
 					} else if(objectId.equals(dstObject.getId())) {
 						r = new Reference(thisObj, dstObject);
 						r.setCollection(true);
+						if (methodExecution.getSignature().contains(".iterator()")
+								|| methodExecution.getSignature().contains(".listIterator()")
+								|| methodExecution.getSignature().contains(".entrySet()")
+								|| methodExecution.getSignature().contains(".keySet()")
+								|| methodExecution.getSignature().contains(".values()")) r.setCreation(true);		// �C�e���[�^�I�u�W�F�N�g���𐶐������Ƃ݂Ȃ�
 						eStructure.addDstSide(r);
 						dstObject =thisObj;
 						aliasCollector.changeTrackingObject(objectId, thisObjectId, false);
diff --git a/src/org/ntlab/traceDebugger/analyzerProvider/ExtractedStructure.java b/src/org/ntlab/traceDebugger/analyzerProvider/ExtractedStructure.java
index 922d9b6..dc19c2d 100644
--- a/src/org/ntlab/traceDebugger/analyzerProvider/ExtractedStructure.java
+++ b/src/org/ntlab/traceDebugger/analyzerProvider/ExtractedStructure.java
@@ -1,5 +1,6 @@
 package org.ntlab.traceDebugger.analyzerProvider;
 
+import org.ntlab.traceAnalysisPlatform.tracer.trace.TracePoint;
 import org.ntlab.traceAnalysisPlatform.tracer.trace.MethodExecution;
 import org.ntlab.traceAnalysisPlatform.tracer.trace.Reference;
 
@@ -10,6 +11,7 @@
 	private MethodExecution coordinator = null;
 	private MethodExecution parent = null;
 	private MethodExecution creationCallTree;
+	private TracePoint relatedTracePoint = null;
 	
 	public Delta getDelta() {
 		return delta;
@@ -63,5 +65,14 @@
 
 	public MethodExecution getCreationCallTree() {
 		return creationCallTree;
-	}	
+	}
+	
+	public void setRelatedTracePoint(TracePoint relatedTracePoint) {
+		this.relatedTracePoint  = relatedTracePoint;
+	}
+
+	public TracePoint getRelatedTracePoint() {
+		return relatedTracePoint;
+	}
+	
 }