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: Did the children enjoy the holiday camp or were they all homesick? ,M: Well, I must admit some of the younger kids were a little bit unhappy, because they've never been away on their own before and didn't know some of the other kids. But soon they recovered. By the last day, they didn't want to go home because they were having such a great time.
(A) F: It is too bad that kids didn't get used to the new environment and didn't have a good time in the end. (B) F: Well, it is common that children felt unfamiliar with the new environment at first. (C) F: It is a pity that they are unhappy to attend the trip the whole time. (D) F: I’m sorry, I don’t understand. Could you say it again?

Ex Output:
B


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:
M: Hi, Maggie. This is Kyle. Could I borrow your bread maker? I want to make some bread for dinner. ,F: OK, you can come to my house in the evening if you like. ,M: OK, thanks very much.
(A) F: Great, let's make some bread together in the evening. (B) F: I’m sorry, I didn’t catch that. Would you mind speaking more slowly? (C) F: Sure, you can take it at noon. (D) F: No worries, hope it will help.

Ex Output:

D