diff --git a/data/tree.json b/data/tree.json
index 6d76c3f3d9d1afc337c2e0a4213e85c1bcf5edd3..6001b21f9188d39f9915a5ac13ef571c7c421f20 100644
--- a/data/tree.json
+++ b/data/tree.json
@@ -51,7 +51,8 @@
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@@ -2285,7 +2334,8 @@
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@@ -2439,7 +2492,8 @@
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@@ -2884,12 +2950,14 @@
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+                      "keywords_forbid": [],
+                      "group": 0
                     }
                   }
                 ],
                 "keywords_must": [],
-                "keywords_forbid": []
+                "keywords_forbid": [],
+                "group": 2
               }
             },
             {
@@ -4249,7 +4353,8 @@
                       "keywords_must": [
                         "csv"
                       ],
-                      "keywords_forbid": []
+                      "keywords_forbid": [],
+                      "group": 0
                     }
                   },
                   {
@@ -4372,7 +4477,8 @@
                       "keywords_must": [
                         "excel"
                       ],
-                      "keywords_forbid": []
+                      "keywords_forbid": [],
+                      "group": 0
                     }
                   },
                   {
@@ -4474,12 +4580,14 @@
                         }
                       ],
                       "keywords_must": [],
-                      "keywords_forbid": []
+                      "keywords_forbid": [],
+                      "group": 0
                     }
                   }
                 ],
                 "keywords_must": [],
-                "keywords_forbid": []
+                "keywords_forbid": [],
+                "group": 2
               }
             },
             {
@@ -4833,7 +4941,8 @@
                         }
                       ],
                       "keywords_must": [],
-                      "keywords_forbid": []
+                      "keywords_forbid": [],
+                      "group": 0
                     }
                   },
                   {
@@ -5370,7 +5479,8 @@
                         }
                       ],
                       "keywords_must": [],
-                      "keywords_forbid": []
+                      "keywords_forbid": [],
+                      "group": 0
                     }
                   },
                   {
@@ -5503,7 +5613,8 @@
                         "CV",
                         "computer vision"
                       ],
-                      "keywords_forbid": []
+                      "keywords_forbid": [],
+                      "group": 0
                     }
                   },
                   {
@@ -5819,7 +5930,8 @@
                         "NLP",
                         "natural language processing"
                       ],
-                      "keywords_forbid": []
+                      "keywords_forbid": [],
+                      "group": 0
                     }
                   },
                   {
@@ -5895,7 +6007,8 @@
                       "keywords_must": [],
                       "keywords_forbid": [
                         "无监督"
-                      ]
+                      ],
+                      "group": 0
                     }
                   },
                   {
@@ -5987,12 +6100,14 @@
                         }
                       ],
                       "keywords_must": [],
-                      "keywords_forbid": []
+                      "keywords_forbid": [],
+                      "group": 0
                     }
                   }
                 ],
                 "keywords_must": [],
-                "keywords_forbid": []
+                "keywords_forbid": [],
+                "group": 2
               }
             },
             {
@@ -6172,7 +6287,8 @@
                         }
                       ],
                       "keywords_must": [],
-                      "keywords_forbid": []
+                      "keywords_forbid": [],
+                      "group": 0
                     }
                   },
                   {
@@ -6321,7 +6437,8 @@
                         }
                       ],
                       "keywords_must": [],
-                      "keywords_forbid": []
+                      "keywords_forbid": [],
+                      "group": 0
                     }
                   },
                   {
@@ -6367,7 +6484,8 @@
                         }
                       ],
                       "keywords_must": [],
-                      "keywords_forbid": []
+                      "keywords_forbid": [],
+                      "group": 0
                     }
                   },
                   {
@@ -6379,7 +6497,8 @@
                         "pattern matching",
                         "模式匹配"
                       ],
-                      "keywords_forbid": []
+                      "keywords_forbid": [],
+                      "group": 0
                     }
                   },
                   {
@@ -6392,12 +6511,14 @@
                         "代码对象",
                         "code object"
                       ],
-                      "keywords_forbid": []
+                      "keywords_forbid": [],
+                      "group": 0
                     }
                   }
                 ],
                 "keywords_must": [],
-                "keywords_forbid": []
+                "keywords_forbid": [],
+                "group": 2
               }
             },
             {
@@ -6411,21 +6532,25 @@
                       "keywords": [],
                       "children": [],
                       "keywords_must": [],
-                      "keywords_forbid": []
+                      "keywords_forbid": [],
+                      "group": 0
                     }
                   }
                 ],
                 "keywords_must": [],
-                "keywords_forbid": []
+                "keywords_forbid": [],
+                "group": 2
               }
             }
           ],
           "keywords_must": [],
-          "keywords_forbid": []
+          "keywords_forbid": [],
+          "group": 0
         }
       }
     ],
     "keywords_must": [],
-    "keywords_forbid": []
+    "keywords_forbid": [],
+    "group": 0
   }
 }
\ No newline at end of file