{"answers": "B", "options": ["f : so , you made the call this afternoon just to complain that your camera 's battery runs out very quickly ?", "f : oh , really ? you mean your camera 's screen always goes black ? could you tell me how long this has been happening ?", "f : okay , this is canon camera company in shanghai , and i have learned that your camera 's button does n't work properly .", "f : so , you are sending this e-mail to complain that your camera 's screen always goes black ? okay , i see ."], "article": "f : hello , this is canon camera company in beijing . good morning . what can i do for you ? m : well , i am making this phone call to complain about a digital camera made by your company . f : what is the problem with it ? m : the screen always goes black .", "id": "train_3164"}