input: Please answer the following: M: Let's see. You already have three fifteen cent stamps and two twenty-five cent stamps on it. You only need one five-cent stamp. What was said before this conversation?
++++++++++
output: W: Do I have enough postage on this package?

input: Please answer the following: M: I wanted to go on Monday, but I couldn't get a ticket for Monday, I bought a ticket for Tuesday. W: Why are you in such a hurry? M: My mother is ill. She has been sent to the hospital. W: How did you get the news? Did your mother send you a letter? M: My sister telephoned me this morning. She asked my father and me to go back. W: Then how long are you going to stay at home, two or three days? M: At most four days. I'll be back for the meeting. What was said before this conversation?
++++++++++
output: W: I hear you're going home, aren't you?

input: Please answer the following: W: It weights half an ounce. That'll be six dollars by airmail. What was said before this conversation?
++++++++++
output: M: How much will it cost to send this letter to Beijing?

input: Please answer the following: M: He was passed over in the selection process for the dean of the admissions office. He'd been hoping for the position for a long time. What was said before this conversation?
++++++++++
output:
W: Rod must be in a bad mood today. What's wrong with him?