input question: W: I'm sorry, Rod. I'm leaving for a conference tomorrow and I'll be away two weeks. I suppose you could send me an E-copy. What was said before this conversation????
output answer: M: Professor Johnson, last night when I was putting the finishing touches on my paper, a computer failure completely wiped out my files, do you think I can have another day to retype it?
W: Nothing comes to mind right now, but I'd like to go over all the articles of the contract once more before signing it. What was said before this conversation?
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Answer: M: Now if you have any questions about the contract. I'll be happy to answer them.
Q: Mum: I'm getting something ready for tomorrow. Tomorrow is Tre e-planting Day. Li Ming: Tree-planting Day? What do people do on this day, Mum? Mum: Many, many people will go and plant trees. Li Ming: Why do they do tha t? Mum: To make the earth more beautiful. And to make our life better. Li Ming: But I often see people on TV cut down many big trees. Why do they do that, Mum? Mum: Hm, to make paper, houses, and to make our life better. Li Ming: To make our life better, too? I just don't understand. Mum, why do many people go and plant trees on the same day? Mum: Oh, my dear son. It's hard to explain to you. When you grow up, you will understand. Just remember trees are very important to us. What was said before this conversation?
A: Li Ming: What are you doing, Mum?
Question: W: Sure, here's my passport and driving license and my account number is on this card. What was said before this conversation?
Answer: M: I need your ID and ac count number before I can cash your check.
[Q]: W: You're fight. M: Look, I know how you feel about my smoking. You don't have to tell me every day. W: I'm sorry. I worry about you. M: Let's be honest. There's always going to be a reason. After you graduate, it's going to be hard to find a job, then there will be the stress from just starting a job. M: OK, I get your point. It's just so hard. You don't really understand because you have never smoked. W: You need some help. Why don't you go to a doctor? M: You mean a psychiatrist? W: No, I don't. I mean a general practitioner. Maybe you can get a patch, or some pills, well, I don't know, something to help you with the withdrawal. M: Really, I believe I can quit on my own. But I'll think about it. I will. W: All fight. I won't mention it for a week. Then I want to know your decision. Because if you don't get some help, I need to rethink our plans. M: You mean you'd break our engagement over this? I can't believe it! W: I don't know. What was said before this conversation?
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[A]: M: We seem to be having this conversation over and over again.
Problem: Given the question: M: Good evening, and thank you for inviting me here this evening. What was said before this conversation?
++++++++++++++++++++++++++++++++
The answer is:
W: Well, Tonight we have Prof. Brown in the studio to talk about his recent book, Fashion Images. Good evening.