diff --git a/1st_encode/json.json b/1st_encode/json.json
index b3cebe7..9949012 100644
--- a/1st_encode/json.json
+++ b/1st_encode/json.json
@@ -72,19 +72,20 @@
           {
             "type": "arc",
             "data": {
-              "circle": true,
               "center": {
                 "x": 18,
                 "y": 21
               },
-              "radius": 5,
+              "axis-length": {
+                "x": 4,
+                "y": 6
+              },
               "angle": 6000
             }
           },
           {
             "type": "arc",
             "data": {
-              "circle": false,
               "center": {
                 "x": 18,
                 "y": 21
@@ -132,15 +133,16 @@
     {
       "type": "round",
       "data": {
-        "circle": true,
-        "radius": 5,
+        "axis-length": {
+          "x": 4,
+          "y": 6
+        },
         "angle": 6000
       }
     },
     {
       "type": "round",
       "data": {
-        "circle": false,
         "axis-length": {
           "x": 4,
           "y": 6
@@ -152,14 +154,26 @@
       "type": "group",
       "members": [
         {
-          "of-map": true,
           "id": 2
         },
         {
-          "of-map": false,
           "id": 1
         }
       ]
+    },
+    {
+      "type": "group",
+      "members": [
+        {
+          "id": 1
+        },
+        {
+          "id": 2
+        },
+        {
+          "id": 3
+        }
+      ]
     }
   ],
   "map": [
@@ -189,6 +203,10 @@
         {
           "type": "shadow",
           "data": {}
+        },
+        {
+          "type": "iterate",
+          "id": 1
         }
       ]
     },
@@ -202,10 +220,8 @@
       "attached": []
     }
   ],
-  "iterate": [
+  "iteration": [
     {
-      "element-group": false,
-      "target": 2,
       "times": 5,
       "operations": [
         {
@@ -237,8 +253,6 @@
       ]
     },
     {
-      "element-group": true,
-      "target": 5,
       "times": 5,
       "children": [
         [