diff --git a/data/numex/rules/ja.json b/data/numex/rules/ja.json
index d6f7fc98..0fe54639 100644
--- a/data/numex/rules/ja.json
+++ b/data/numex/rules/ja.json
@@ -100,102 +100,9 @@
             "right": "add"
         },
         {
-            "name": "第〇",
+            "name": "第",
             "value": 0,
-            "type": "ordinal"
-        },
-        {
-            "name": "第一",
-            "value": 1,
-            "type": "ordinal"
-        },
-        {
-            "name": "第二",
-            "value": 2,
-            "type": "ordinal"
-        },
-        {
-            "name": "第三",
-            "value": 3,
-            "type": "ordinal"
-        },
-        {
-            "name": "第四",
-            "value": 4,
-            "type": "ordinal"
-        },
-        {
-            "name": "第五",
-            "value": 5,
-            "type": "ordinal"
-        },
-        {
-            "name": "第六",
-            "value": 6,
-            "type": "ordinal"
-        },
-        {
-            "name": "第七",
-            "value": 7,
-            "type": "ordinal"
-        },
-        {
-            "name": "第八",
-            "value": 8,
-            "type": "ordinal"
-        },
-        {
-            "name": "第九",
-            "value": 9,
-            "type": "ordinal"
-        },
-        {
-            "name": "第十",
-            "value": 10,
-            "type": "ordinal",
-            "left": "multiply",
-            "right": "add"
-        },
-        {
-            "name": "第百",
-            "value": 100,
-            "type": "ordinal",
-            "left": "multiply",
-            "right": "add"
-        },
-        {
-            "name": "第千",
-            "value": 1000,
-            "type": "ordinal",
-            "left": "multiply",
-            "right": "add"
-        },
-        {
-            "name": "第万",
-            "value": 10000,
-            "type": "ordinal",
-            "left": "multiply",
-            "right": "add"
-        },
-        {
-            "name": "第億",
-            "value": 100000000,
-            "type": "ordinal",
-            "left": "multiply",
-            "right": "add"
-        },
-        {
-            "name": "第兆",
-            "value": 1000000000000,
-            "type": "ordinal",
-            "left": "multiply",
-            "right": "add"
-        },
-        {
-            "name": "第京",
-            "value": 10000000000000000,
-            "type": "ordinal",
-            "left": "multiply",
+            "type": "ordinal_indicator",
             "right": "add"
         }
     ]