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: Hello, I am Miss Gear. I... ,M: Oh, good morning, Miss Gear. Come in, please. We have talked on the phone. You'd like to rent the place? ,F: Yes, I'd like to have a look at this house. ,M: That's quite good. Let me show you around the place. How do you like the location? ,F: The place is very convenient. As it's only a 5 minutes' walk from the nearest bus stop. This must be the bedroom. Oh my God. I love the French window.
(A) M: Yes, the place is near the bus stop, and the living room window of French style is awesome. (B) M: The French window in bedroom is really attractive, but the place is far from the bus stop. (C) M: I’m sorry, I didn’t catch that. Would you mind speaking more slowly? (D) M: The safety of building is really important, though you don't like the location.

Ex Output:
C


Ex Input:
F: I'm planning to go to Canada on vacation. ,M: What places are you going to visit? ,F: First, I'll spend a few days in Vancouver. Then I'll take a train through the Rocky Mountains. ,M: Oh, you're riding through the Rocky Mountains. That's really exciting. ,F: Then I'll fly to Toronto and take a bus to Niagara Falls. I will take a boat under that huge waterfall. ,M: Wow, that's wonderful. You're so lucky! ,F: Well, I hope I don't get seasick. I'll finish my trip in Nova Scotia. I'd like to bike around some small fishing villages. ,M: Have a great time and take lots of pictures!
(A) F: Thank you. I really had a wonderful experience yesterday. (B) F: I am reading an introduction to Canada, but I will not go to Canada. (C) F: I’m sorry, I don’t understand. Could you say it again? (D) F: Thanks a lot. My travel plan is perfect. I will have a good time.

Ex Output:
D


Ex Input:
F: I'm excited to show you Lila. She does not bite, I promise. Isn't she so cute? ,M: No, keep it away from me. Please leave it in the cage. Snakes are so terrible.
(A) F: No, Lila is not boring at all. (B) F: Just a minute! I do not quite follow what you are saying, would you mind repeating that? (C) F: Don't be afraid of Lila. She is really cute. (D) F: Why are you so excited about seeing Lila?

Ex Output:

C