input question: W: The police took my family's dog because I didn't have a license for it. I had to spend the whole night looking for a new dog that looked the same as the old one. M: Really? That's crazy. W: Look, could you keep this a secret? My parents loved the old dog. I don't want them to hear I bought a new one. What was said before this conversation????
output answer: M: What happened to you last night? We waited but you didn't show up.

input question: M: Go along the road and turn to the right at the third crossing. What was said before this conversation????
output answer: F: Excuse me, how can I get to Star Restaurant?

input question: M: Why don't you ask Mr. Green to have a look? What was said before this conversation????
output answer: W: Something is wrong with our TV.

input question: W: How about being a life guard? M: Life guards don't swim that much. They usually just sit. W: Well then, you could be a swimming coach, or a tour guide. M: Tour guide is a good idea. I'd walk all day. What was said before this conversation????
output answer:
M: I need a summer job that will give me some exercise.