diff --git a/src/main/java/models/objectOrientedTransfer/DataTransferContext.java b/src/main/java/models/objectOrientedTransfer/DataTransferContext.java
index 04b10d0..9bfe279 100644
--- a/src/main/java/models/objectOrientedTransfer/DataTransferContext.java
+++ b/src/main/java/models/objectOrientedTransfer/DataTransferContext.java
@@ -105,12 +105,14 @@
             MultiplicityValue multiplicityValue = null;
             List<ReferenceEdge> srcEdges = new ArrayList<>();
             List<ReferenceEdge> dstEdges = new ArrayList<>();
+            ObjectNode src = null;
+            ObjectNode dst = null;
             for (StringValue keyValue : ((JsonValue) value).getJson().keySet()) {
                 String key = keyValue.getStringValue();
                 if (key.equals("src")) {
-                    setEdges((StringValue) ((JsonValue) value).getValue(keyValue), srcEdges);
+                    src = setEdges((StringValue) ((JsonValue) value).getValue(keyValue), srcEdges);
                 } else if (key.equals("dst")) {
-                    setEdges((StringValue) ((JsonValue) value).getValue(keyValue), dstEdges);
+                    dst = setEdges((StringValue) ((JsonValue) value).getValue(keyValue), dstEdges);
                 } else if (key.equals("style")) {
                     setTransferStyle((StringValue) ((JsonValue) value).getValue(keyValue));
                 } else if (key.equals("multiplicity")) {
@@ -132,7 +134,15 @@
             if (multiplicityValue == null) {
                 throw new RuntimeException("multiplicityが存在していません");
             }
-            return new Relation(srcEdges,dstEdges,multiplicityValue);
+            if(src != null&&dst != null){//両方単独ObjectNode
+                return new Relation(src,dst,multiplicityValue);
+            }else if(src == null&&dst != null){//片方単独
+                return new Relation(srcEdges,dst,multiplicityValue);
+            }else if(src != null&&dst == null){//上と同じ
+                return new Relation(src,dstEdges,multiplicityValue);
+            }else{//両方複数
+                return new Relation(srcEdges,dstEdges,multiplicityValue);
+            }
         }
         throw new ExpectedJsonValue("Jsonではありません。");
     }
@@ -163,7 +173,7 @@
         }
     }
 
-    private void setEdges(StringValue stringValue, List<ReferenceEdge> edges) {
+    private ObjectNode setEdges(StringValue stringValue, List<ReferenceEdge> edges) {//objectNodeの場合はobjectNodeを返したい。
         String S = stringValue.getStringValue();
         int cur = 0;
         ArrayList<String> list = new ArrayList<>();
@@ -176,13 +186,19 @@
             list.add(variable.toString());
             cur++;
         }
-
+        if(list.size() == 1){//一つだけの場合はobjectNodeを返す
+            String src = list.get(0);
+            objectNodeMap.put(src, new ObjectNode(src));
+            return objectNodeMap.get(src);
+        }
         for (int i = 0; i < list.size() - 1; i++) {
             String src = list.get(i);
             String dst = list.get(i + 1);
             if (dst.charAt(0) == '{' && dst.charAt(dst.length() - 1) == '}') {//oneToMany
                 dst = dst.substring(1, dst.length() - 1);
-                objectNodeMap.put(dst, new ObjectNode(dst));
+                if(!objectNodeMap.containsKey(dst)){
+                    objectNodeMap.put(dst, new ObjectNode(dst));
+                }
                 if (src.charAt(0) == '{' && src.charAt(src.length() - 1) == '}') {
                     src = src.substring(1, src.length() - 1);
                     if (!objectNodeMap.containsKey(src)) {
@@ -193,9 +209,11 @@
                         objectNodeMap.put(src, new ObjectNode(src));
                     }
                 }
-                edges.add(new ReferenceEdge(objectNodeMap.get(src), objectNodeMap.get(dst), dst, "String"));
+                edges.add(new ReferenceEdge(objectNodeMap.get(src), objectNodeMap.get(dst), convertTheFirstCharacterToLowerCase(dst), "String"));
             } else {//oneToOne
-                objectNodeMap.put(dst, new ObjectNode(dst));
+                if(!objectNodeMap.containsKey(dst)){
+                    objectNodeMap.put(dst, new ObjectNode(dst));
+                }
                 if (src.charAt(0) == '{' && src.charAt(src.length() - 1) == '}') {
                     src = src.substring(1, src.length() - 1);
                     if (!objectNodeMap.containsKey(src)) {
@@ -206,8 +224,18 @@
                         objectNodeMap.put(src, new ObjectNode(src));
                     }
                 }
-                edges.add(new ReferenceEdge(objectNodeMap.get(src), objectNodeMap.get(dst), dst));
+                edges.add(new ReferenceEdge(objectNodeMap.get(src), objectNodeMap.get(dst), convertTheFirstCharacterToLowerCase(dst)));
             }
         }
+        return null;
+    }
+
+    private String convertTheFirstCharacterToLowerCase(String s){
+        if(Character.isUpperCase(s.charAt(0))){
+            s = s.substring(0,1).toLowerCase() + s.substring(1);
+            return s;
+        }else{
+            return s;
+        }
     }
 }