input: Please answer the following: W: Don't worry, usually ankle injuries heal quickly if you stop regular activities for a while. What was said before this conversation?
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output: M: Today is a bad day for me. I fell off a step and twisted my ankle.

input: Please answer the following: W: Oh, sorry, I missed you. My English class ran late again. M: That's been happening quite often recently. Maybe it's because the final exams are coming up. W: Yes. After class, there is always a group of students hanging around the professor asking questions. How about you? Are yon ready for the exams? M: I've been studying a lot recently, but my math problems are really giving me a big headache. W: Don't worry, Tom. There's still one month to go before the exam. You have enough time to work them out. M: Well, I don't need to spend much time on other subjects. I can pay more attention to my weak subjects. What was said before this conversation?
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output: M: Hi, Lily. Where were you at lunchtime? I was looking for you in the dining hall.

input: Please answer the following: W: All right. Acutually, I must hurry to the library to return some books. What was said before this conversation?
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output: M: I am afraid there won't be time to do another tooth today. Make sure you don't eat anything like stakes for the next few hours, and we'll fill the other cavity tomorrow.

input: Please answer the following: W: Well, I wasn't paying attention when I started to cross the street, and I stepped in front of a taxi. I didn't realize it was still moving. M: Can you walk? W: Not very well. M: Where does it hurt? W: My side hurts when I take a step? M: Okay, don't try to walk anymore. Don't worry. An ambulance is on the way. You know, you're very lucky; you could have easily been killed in the accident. W: Yes, I guess I could have. M: You'll have to fill out a form. Do you have any identification with you? W: I have my passport. By the way, how did you get here so fast? M: Someone dialed 911 and reported the accident. We were in the area and got a radio call. It only took a minute or so to get here. What was said before this conversation?
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output:
M: Tell me what happened.