special_tokens_map.json

{"unk_token": "[UNK]", "sep_token": "[SEP]", "pad_token": "[PAD]", "cls_token": "[CLS]", "mask_token": "[MASK]", "additional_special_tokens": ["[knowledge]", "[history]", "[query]", "[class0]", "[class1]", "[class2]", "[class3]", "[class4]"]}