cache/slot/tag2idx.json

{
  "B-time": 0,
  "I-date": 1,
  "I-people": 2,
  "B-last_name": 3,
  "O": 4,
  "I-time": 5,
  "B-date": 6,
  "B-people": 7,
  "B-first_name": 8
}