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 only have an hour for lunch. ,F: Well, now I have only 45 minutes. ,M: That's not much time. Where should we go? How about Tornis Ettling Restaurant? Just across the street. I love the pizza. ,F: I love the food too, but they are really slow. Last week, I waited 30 minutes for my food. ,M: OK. Let's have a sushi at the David's. We can be in and out in 20 minutes. ,F: Today is the Thursday, David's is not open.
(A) M: Oh, yes. It is usually crowded on Thursday. (B) M: I didn’t hear you. Please could you tell me again? (C) M: Oh, yes. It is usually closed on Friday. (D) M: Yes, it is really far and crowded today.

Ex Output:
B


Ex Input:
F: Now Mr.Snow, what can you remember about the attack? ,M: Well, I was working late yesterday evening. ,F: What time did you leave your office? ,M: About 9:15? ,F: Are you sure? ,M: Yes, officer. I looked at my watch. ,F: What did you do then? ,M: Well, I locked the door and I was walking to my car when somebody hit me on the head. ,F: Did you see the attacker? ,M: No, he was wearing a stocking over his head. ,F: Tell me Mr.Snow, how did you break your leg? ,M: Well, when the doctors were putting me into the car, they dropped me.
(A) F: Honey, I'll call the police. (B) F: My workmate, don't worry. I'll call the police. (C) F: Just a minute! I do not quite follow what you are saying, would you mind repeating that? (D) F: Don't worry.  As a policewoman, I'll solve your problem.

Ex Output:
D


Ex Input:
M: Ella, what languages do you speak? ,F: As you know Korean is my first language. I also speak English and Chinese. How about you? What languages do you speak? ,M: English, German and French. While I was studying in Europe, I used French in German all the time. Now, my French is not so good but I do keep my German up.
(A) F: My mother tongue is Korean, but I can't speak any other language. (B) F: I’m sorry, I don’t understand. Could you say it again? (C) F: We can both speak English. English is my mother tongue. (D) F: My native language is Chinese, but I can't speak English.

Ex Output:

A