label_map.json

{
  "O": 0,
  "B-ORG": 1,
  "I-ORG": 2,
  "B-LOC": 3,
  "I-LOC": 4,
  "B-PER": 5,
  "I-PER": 6,
  "B-SUBJ": 7,
  "I-SUBJ": 8,
  "B-ID": 9,
  "I-ID": 10
}