input question: W: I'd like to report a robbery. It's my ear. It's been stolen. What was said before this conversation????
output answer: M: Yes, madam. What seems to be the problem?

input question: M: Yes, the class has been moved to the north building. Also it is now Tuesdays and Thursdays from 2 to 4pm. Instead of being held on Monday and Friday from 2 to 3pm. What changes! W: Professor Lee will still be teaching the class, right? What was said before this conversation????
output answer: W: Excuse me, I'm enrolled to take Professor Lee's literature course 102 and I hear some changes have been made.

input question: M: What we've learned is the fact that he left the Level One Club, which is a drinking club in Neasden Lane, about 1:30 a.m., and we're trying to account for movements up till 2:15 a. m., because it was about that time he was found by a member of the club, an employee. He was found in the underpass, the pedestrian way, under the North Circular Road. Death was due to multiple head injuries. We understand that there may have been two girls and a man who was drunk in close proximity to the entrance to the subway, who may have seen the man walking in that direction, or any attacker who may have been following him. W: About what time would you think that they were there? M: Just after half past one to a quarter past two. W: Then in that case the gap you have is really quite short. It's only more or less half a hour or forty minutes. M: In fact, yes, as short as that. W: And how far away from the Neasden underpass was the drinking club? M: Fifty meters. W: And at the moment you know of no other people in the area whom you want to talk to, other than the drunken man and the two women who were seen with him or near him at some time? M: Yes. The club closed at half past one and there may have been other people who left the club who went that way. We understand that there were also minicab drivers parked in the area who may have seen something as well. W: As it is, I take it you haven't been able to identify them. M: No, not at this stage. W: Well, thank you very much. What was said before this conversation????
output answer: W: Police in North London are treating as murder the death of a man thought to be in his forties whose body was found in a pedestrian subway in Neasden. The man leading the hunt is Detective Chief Superintendent John Day, who explains what they know of the man's movements in the early hours of this morning.

input question: W: You may try again. What was said before this conversation????
output answer:
M: So strange, I was cut off in the middle of the conversation. I called the operator, but no one answered.