input: Please answer the following: F: We still have 30 minutes to go there. What was said before this conversation?
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output: M: Would you hurry up? The play starts at 7:30.
Please answer this: W: Hi. M: You look great! Have you been on vacation? W: Yeah, I have. I was on the West Coast. M: Nice! How was it? W: Great. I had a wonderful time. It was really nice to get away from work. M: Where did you go? W: Los Angeles and San Francisco. M: How did you like Los Angeles? W: Well, it is cleaner than I thought it would be, and there are a lot of trees, so I like it better than I thought I would. But it's huge! It's really hard to get around. The bus service is terrible, and you know, I don't like taking the underground. We had to rent a car. M: And was the weather good? W: Oh, yes, it was nice and warm in Los Angeles. M: What about San Francisco? W: The weather? It was cooler than LA, but it wasn't uncomfortable. M: Cool in San Francisco? That's surprising. W: Yeah, it surprised me a bit, too. And it was a problem because we didn't take any sweaters or anything like that, but it's always like that in August. Anyway, I loved it. It's probably the most beautiful city in the US-all those hills, the bay, and those magical old Victorian houses. M: So, you like it better than Los Angeles? W: Absolutely! And there's much more that you can see and do on foot! It's smaller than Los Angeles, so it's much easier to get around. There are lots of buses and streetcars, and of course, minibuses, too. What was said before this conversation?
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Answer: M: Hi, Amy.
Problem: M: Sorry, Jenny, but I have a soccer game on Thursday. You should ask Melinda to take your shift. I think she got back from vacation yesterday. What was said before this conversation?

A: W: Hey, Tim. My uncle died last weekend. His funeral is on Thursday, so I can't work. Can you work for me tomorrow?
Problem: Given the question: W: I can't wait to see Canada, Jason, but I'm scared stiff of the journey. My husband insists on flying, but I want to sail. Planes make me nervous. M: There's nothing to be frightened of. How many planes fly across the Atlantic every day? W: I've no idea. Hundreds, I suppose. M: And how often do you hear of a crash? Once or twice a year? W: Yes, but aero-planes fly so high and fast that once is enough. M: There are more road accidents per day than air deaths per year. Air transport is really safe compared with road transport. W: I still prefer to go by sea. Ships may not travel fast but as least you can relax. I'd love a trip on a luxury liner like the Queen Elizabeth II. M: It's fine if you're a good sailor, but have you ever traveled far in a rough sea? W: No. I've only been in a boat once. I sailed down the River Thames on a sightseeing tour, but in any case I'd rather be sea - sick than dead. What was said before this conversation?
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The answer is:
M: Are you looking forward to your trip to Canada, Susan?
input question: W: Unfortunately, I only had $5. What was said before this conversation????
output answer: M: Did you buy the handbag you liked so much?
input question: M: Not too bad. But I'm sure I made some mistakes in the science paper and maths paper. W: Me, too. The science paper was not easy this time, was it? M: It seems that our new science teacher likes to give us tough exams. W: I have the same feeling. He looks only 25 or so. M: Maybe he hopes to make us pay more attention to his lessons in this way. W: Really? M: Well. I'm only joking. What was said before this conversation????
output answer:
W: How were your exams,Mike?