Problem: Given the question: M: No. What is it like? W: It's one of the most interesting cities in the United States. It has a French Quarter, with narrow streets and little shops. Many of the shops and restaurants are French. M: There's a lot of jazz music in New Orleans, isn't there? W: Yes. You hear wonderful jazz there. New Orleans and San Francisco are my two favorite cities. Have you been to San Francisco? M: No. What is it like? W: It has lovely views, and one of the most beautiful bridges in the world - the Golden Gate Bridge. It's a very hilly city. The hills are in the middle of the town, so you have to walk up and down hills when you go anywhere. When you arrive, your car needs good brakes. M: Do you have to drive? Can't you take buses? W: Well, most people who visit San Francisco ride in the cable cars. A cable car goes on tracks, and a strong cable pulls it up the hills. M: That doesn't sound very safe. W: Don't worry. Hundreds of people ride in cable cars every day. What was said before this conversation?
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The answer is:
W: Have you ever been to New Orleans?

Problem: Given the question: W: Yes, sir. What would you like? M: I want a hamburger, a medium French fries, a Big Mac meal, and a double cheeseburger, please. W: Anything else? M: And a 6-piece chicken nuggets. W: What kind of drink would you like? M: A large Coke with extra ice and a milkshake. And please give me several more straws. How much do I owe you? W: Let me calculate it, er... that comes to $ 14.30. M: Here's $15. Keep the change. What was said before this conversation?
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The answer is:
M: Can I order take-out here?

Problem: Given the question: W: You don't want to get one of those 3D TVs, do you? M: Well, I'm not sure. All I know is that I want something with a big screen,and the most important thing is a clear picture. W: Oh, you mean like the one our neighbor bought the other day? M: Yeah. They have fantastic sound, too. W: This all sounds a little expensive to me. I'm not sure if we have the money, even if we didn't go on vacation. M: Hey, look at this ad in the paper! They're having a special sale on TVs. This one is only $300! And even the biggest ones are only $500. W: Well, I think we can afford that. Let's go check out that sale! What was said before this conversation?
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The answer is:
M: That's it! I've had it with this TV! We need to get a new one. The signal is so bad. It's ridiculous. All of our friends have nice TVs. It's high time we joined them.