Question: M: I like the red woolen one. What was said before this conversation?
Answer: F: Which sweater do you like better, the cotton one or the woolen one?
[Q]: W: No. It's Tony's. What was said before this conversation?
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[A]: M: Oh, what a nice watch! Is it yours, Betty?
input: Please answer the following: W: I'll check the mail box. There is nothing in it but a post-card from our daughter. What was said before this conversation?
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output: M: Has today's mail arrived? I'm anxious to know about the result of my application.
Please answer this: W: No, not yet. Could you show me that overcoat, the silver gray one in the middle. M: Certainly. You've got excellent taste. It's very nice and it's 100 percent wool. W: I like it. Could I try it on? M: Certainly. It looks good on you, madam. W: I think so. But a slightly larger size would be better. M: Would you like to try this one on? W: This one fits me well. How much does it cost? M: Only $ 170. W: OK, I'll take it. And I'd like that blue jacket on the right. How much is it? M: It's just $ 250. W: Oh, that's too expensive, I'm afraid. M: Anything else? W: No, thanks. What was said before this conversation?
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Answer: M: Good morning, madam. Is anybody taking care of you?
Problem: W: Here you are. M: I want to find what's on this weekend. W: Is there anything good on? M: The Beijing Opera is showing on Saturday evening. Do you like Beijing Opera? W: Oh, yes. Very much. When and where will it be? M: At 7:30 in Beihai Park. W: Let's go and see it, OK? M: Good idea! What was said before this conversation?

A: M: Susan, Please pass me a copy of China Daily.
input: Please answer the following: W: Twenty minutes already. M: Did you notice whether the No. 7 bus has passed by? W: Not while I've been standing here. I'm also waiting for the No. 7 bus myself. M: Good. Hot today, isn't it? W: Yes, it is. I wish that it would rain and cool off. M: Me, too. This is unusual for March. I don't remember it ever being so hot and dry in March before. W: My mother and I have just moved here from Indiana. It is pretty cold there. M: Yes, I've heard of that. W: Do you think we've missed the has? M: Take it easy. It never comes exactly on the half hour like it should. What was said before this conversation?
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output:
M: Excuse me. Have you been waiting long?