Update README.md

README.md

@@ -345,7 +345,7 @@ An example of 'train' looks as follows:
 #### ner
 - `id`: the instance id of this sentence, a `string` feature.
 - `tokens`: the list of tokens of this sentence, obtained with spaCy, a `list` of `string` features.
-- `tags`: the 0-based index of the start token of the relation subject mention, a classification label.
+- `tags`: the list of ner tags of this sentence, a `list` of classification labels.
 
 ```python
 {"O": 0, "B-Material": 1, "I-Material": 2, "B-Process": 3, "I-Process": 4, "B-Task": 5, "I-Task": 6}