Update fin.py

fin.py

@@ -21,7 +21,7 @@ _CITATION = """
     pages = "84--90",
 }
 """
-
+_LABEL2ID = {"O": 0, "B-PER": 1, "B-LOC": 2, "B-ORG": 3, "B-MISC": 4, "I-PER": 5, "I-LOC": 6, "I-ORG": 7, "I-MISC": 8}
 _HOME_PAGE = "https://github.com/asahi417/tner"
 _URL = f'https://huggingface.co/datasets/tner/{_NAME}/raw/main/dataset'
 _URLS = {
@@ -78,4 +78,5 @@ class Fin(datasets.GeneratorBasedBuilder):
             supervised_keys=None,
             homepage=_HOME_PAGE,
             citation=_CITATION,
+            label2id=_LABEL2ID
         )