rename field document_id to id

conll2012_ontonotesv5.py

@@ -39,7 +39,7 @@ class Predicate(Span):
 @dataclasses.dataclass
 class Conll2012OntonotesV5Document(Document):
     tokens: List[str]
-    document_id: str
+    id: str
     pos_tags: List[str]
     sentences: AnnotationList[Span] = annotation_field(target="tokens")
     parse_trees: AnnotationList[Attribute] = annotation_field(target="sentences")
@@ -211,7 +211,7 @@ def example_to_document(
 
     doc = Conll2012OntonotesV5Document(
         tokens=tokens,
-        document_id=example["document_id"],
+        id=example["document_id"],
         pos_tags=pos_tags,
     )
     # add the annotations to the document