input question: W: Not a bad idea,we need some fresh air. What was said before this conversation????
output answer: M: Do you mind if I open the window?

input question: W: The topic was interesting, but the lecture was much more difficult to follow than I had expected. What was said before this conversation????
output answer: M: What do you think of Professor Brown's lecture?

input question: M: Don't you know that I've been in military service in the Navy for years? What was said before this conversation????
output answer: W: It must be the first time for you to be aboard a warship.

input question: W: Just sit down, and I'll get you a Coke and a sandwich, OK? What was said before this conversation????
output answer:
M: I feel so stressed out right now! Work has been crazy lately. I need to relax.