input: Please answer the following: M: Well, it's not my fault! What did you do with it when you got it home? W: I just plugged it in and turned it on. M: Well, it was working fine when you took it... when you left here. W: Well, I think the least you people can do is to come over and adjust it for me, and make sure the thing's working all right. M: Well, I wouldn't mind doing that. Or you could bring it here and I'll have a look at it. But you bought a second-hand TV and there's only a... two-day warranty on it. W: Second-hand? Second-hand?! That thing was supposed to be new! Your salesman told me it was brand new. M: Well, I can't be responsible for that. What was said before this conversation?
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output: W: Hey, I'm a little bit upset about that television you people sold me. I got it home and the thing doesn't work! The lines.., the... there're lines all over the picture! I'm just not satisfied. I'd like to have my money back, or give me a new television.
Please answer this: W: I'd like to live in the downtown area near my work but Nelson wants to live in suburbs to save our expenses. What was said before this conversation?
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Answer: M: Hi, Susan! Have you decided where to live when you get married?
Problem: M: I asked if you could lend me your bike. What was said before this conversation?

A: W: Excuse me, I didn't hear what you said.
Problem: Given the question: M: I was at home asleep. W: Asleep! I thought that you had to take an exam. M: I was sick. I had a fever. I couldn't get out of bed. W: You still look a little sick. You couldn't go back to bed. M: I'm going now. I just came here to speak to my professor. W: What did he tell you? M: He said that I'd be able to take a make-up. W: Well, that's all right then. Are you going straight home? M: I have to stop at the drugstore on the way. I need some aspirin. W: Do you think that you should walk that far? M: I have to walk. I didn't bring my car. 1 didn't think I'd be able to drive today. W: Well, take care of yourself. M: OK. Thanks. What was said before this conversation?
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The answer is:
W: Where were you yesterday?
input question: M: Relax, Kate. Are they in your purse? W: No, they're not. They're gone! M: I bet they're still on the table in the restaurant. What was said before this conversation????
output answer: W: Oh, no! Where are my car keys?
input question: M: Hi, Susan] Oh, no! Of course not! I give up driving to work. Instead, I ride to my working place. W: Why is that? M: You see. There is only a stone's throw from my home to my working place. I think riding a bike to work is more convenient. W: I don't think so. It will take you at least 25 minutes to get to our company from here. M: Yes, sometimes, 30 minutes. But I love riding to work now. It is a totally different picture on my way to work. W: Why do you think so? M: You see, every morning, after I set off for work, I can breathe the new fresh air along the way. By the time I reach my office, I feel rather revived. I even don't rely on coffee to spend my morning hours. W: Is it so magical? M: At least, that's how I feel about riding to work. I can't believe I have wasted so much fresh morning air in the past 3 years! W: Will you continue riding to work in the future? M: I think so. What was said before this conversation????
output answer:
W: Peter, where is the ear? I haven't seen you drive to work for a long time! Is it broken or stolen?