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.

Example Input: F: Ladies and gentlemen, we are flying to San Francisco. ,M: Excuse me, Miss. ,F: Yes, sir. What's wrong? ,M: It's terrible. ,F: Are you feeling airsick? ,M: No. I've just realized I don't have my travel bag with me. ,F: Don't worry sir. Can you tell me what your bag is like? ,M: A small blue one made of leather with my name and address on it, a Brown basketball toy tide to the belt and my black wallet inside it. ,F: Can you remember where you last saw it? ,M: Let me see. Oh I must have left it by your airline counter at the airport when I registered my luggage.
(A) F: I am sorry. You spoke so rapidly that I did not catch the meaning of what you said. Could you repeat that? (B) F: Don't worry sir. I'll contact the staff from the hotel to get your bag back. (C) F: So you didn't leave your name or address on the bag, did you? (D) F: You left your bag at the airport? Don't worry. I'll contact the workers there.
Example Output: D

Example Input: F: The food looks really delicious. ,M: Sure it is, the wedding ceremony is wonderful, too. ,F: The bride looks so happy today. Are you a friend of Catherine's? ,M: Yes, we were in the same class at college. How about you? ,F: I'm a close friend of David's. How handsome he is in wedding clothes today. Well, may I have your name please? ,M: Jackson. I'm working in Chengdu, but I worked in Wuhan a year ago, and you? ,F: My name is Janet. I'm living in Mianyang. Ah, life in Chengdu, is it exciting?
(A) M: I've been working in Wuhan all the time. (B) M: Before working in Chengdu, I lived and worked in Mianyang. (C) M: I’m sorry, I don’t understand. Could you say it again? (D) M: I've just moved in Chengdu this year.
Example Output: D

Example Input: M: I want to book a bus tour for the middle of June. ,F: Well, we have red and blue routes. The main attractions on the red route are the White House, the Lincoln Memorial and the Smithsonian Museum.
(A) M: I didn’t hear you. Please could you tell me again? (B) M: The train tour in June is a little boring. (C) M: Yes, I want to book the green routes in July. (D) M: A train trip in August is a good choice.
Example Output:
A