{"answers": "B", "options": ["m : i have a watch , i do n't need other person to tell me what time is it .", "m : oh , there really is a clock on the hall . let me see , it 's 10:00. thank you very much !", "m : could you tell me when is my train supposed to leave ?", "m : i do n't want to go the boarding hall , thanks . my train just left 5 minutes ago ."], "article": "m : do you have a watch by any chance ? my phone battery is dead and i think i 've missed my train . f : sorry , i do n't . but i think there 's a big clock by the boarding hall .", "id": "train_4540"}