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:
F: Where are you going for your birthday tomorrow? ,M: I have booked a room in the Blue Bay Restaurant. ,F: You mean the Blue Sky Restaurant? ,M: No, that's the Blue Bay, just across from the Blue Ocean Restaurant.
(A) F: The Blue Ocean Restaurant is opposite the Blue Bay Restaurant, right? (B) F: I'm sorry, I didn't catch that. Would you mind speaking more slowly? (C) F: You have booked a room in the Blue Ocean Restaurant? It is the one which is beside the Blue Sky Restaurant, right? (D) F: You have booked a room in the Blue Ocean Restaurant? It is the one which is opposite the Blue Bay Restaurant, right?

Ex Output:
A

Ex Input:
F: Tom, please go to the door. I hear the Bell. ,M: It's the mailman mother. Here's a letter from uncle George. ,F: Give it to me. How wonderful! He is coming to visit us. ,M: And when's he coming? ,F: He's coming by car on the twenty-fourth. He staying from the twenty-fourth to the twenty-sixth. ,M: And let me look at the calendar. And good, and the twenty-fourth is a Saturday, is he coming alone? ,F: No, he's coming with aunt Cynthia and the girls. ,M: Uh, mother, I don't remember the girls. How old are they? ,F: Your cousin, Fe is 15. Rosemary is older than Fe, she 17.
(A) M: Oh, yeah, I forgot that Fay is two years younger than Rosemary. (B) M: Actually.I am older than Fay but younger than my sister Rosemary. (C) M: Yeah, my sister Fay is two years younger than Rosemary. (D) M: I'm sorry, I didn't understand. Could you repeat a little louder, please?

Ex Output:
A

Ex Input:
M: Mrs Peterson, we're planning to write a report. Could you help us with it? ,F: Sure, what is it about? ,M: It's about people's love for music. We want to know how music influences them. ,F: Sounds interesting. What can I do for you? ,M: We did some research at several universities and we need to get the same information about other age groups. So I wonder if you could help us with this. ,F: You mean I need to hand out these papers to the members of my gym and then collect them? That's easy. When do you need them? ,M: By next Monday. People of all ages should be included, especially the middle aged and teenagers. ,F: Sure, no problem.
(A) M: Actually you don't need to collect info, we mainly do the research by making phone calls. (B) M: Excuse me, could you repeat the question? (C) M: Thank you, and please make sure the participants will spend at least 5 minutes on the interview. (D) M: In order to reduce the paper usage, you can collect the answers by designing a survey online.

Ex Output:
B