In this task you are given a small conversation between two persons and 4 options on how the conversation should continue. Your job is to choose the most reasonable option. The conversation and the options are separated by a newline character. Each dialogue in the conversation are separated by a comma. F and M indicate female and male, respectively.

Ex Input:
M: You ran into Peter on the street yesterday. Did he say anything about Mary? ,F: Yes. She ought to be leaving Beijing very soon because she has been admitted to Harvard University.
(A) M: I’m sorry, I don’t understand. Could you say it again? (B) M: Peter will leave Beijing soon. Because he has been admitted to Harvard University. And Mary will stay in Beijing. (C) M: I'm so pleased that Mary will leave for America soon. I hope that she will enjoy her study at New York University. (D) M: I'm so pleased that Mary will leave for America soon. I hope that she will enjoy her study at Harvard University.

Ex Output:
D


Ex Input:
M: What a beautiful day! The birds are singing, and the sun is shining in the sky. ,F: Not so loud, I just woke up and I have a headache.
(A) M: I’m sorry, I don’t understand. Could you say it again? (B) M: Come on! It is a beautiful morning. (C) M: Oh, it's raining in the afternoon. You should take an umbrella with you if you go outside. (D) M:  It is not the bedtime, why are you still sleeping in the evening? The sun has gone down.

Ex Output:
B


Ex Input:
F: I left school late and I was trying to get home before the rush hour. ,M: Did you make it? ,F: No. When the police officer was giving me a ticket the rush hour started. It took me twice as long to get home.
(A) M: Oh, you want to get to the work place in a hurry to avoid the rush hour. (B) M: I am sorry. You spoke so rapidly that I did not catch the meaning of what you said. Could you repeat that? (C) M: Why do you want to avoid a ticket? (D) M: To get rid of the police is ridiculous.

Ex Output:

B