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: So how's your new job going, David? ,M: It's going really well. I started 2 months ago and it's great. ,F: Which countries are you flying to? ,M: Mostly those in South America.
(A) F: I'm very happy that you're used to this job on the plane. I was a little worried when you first started a month ago. (B) F: So you do like your work on the plane, don't you? (C) F: Excuse me, could you repeat the question? (D) F: Does that mean the restaurant you work in South America?

Ex Output:
B

Ex Input:
F: Oh, it's so nice to be out of the cinema. It was so hot in there. I thought I melt. ,M: Terrible, wasn't it? Well, what did you think of Madame Curie? Do you think it is as good as the review said? ,F: It's a good film, but not as good as the book. I think some of the story was missing in the film. ,M: Yes, but you couldn't possibly fit everything that happens in a 200 page novel into a 2 hour film. There simply isn't the time. ,F: I know, but the director should at least try to follow the story. With this film, he left out some important people and even changed the end. ,M: Well, perhaps he thought he was improving the story, Karen.
(A) F: He did. His film is far more realistic than the book. I like it. (B) F: I am really sorry, I did not catch that. Would you slow down, please? (C) F: Obviouesly, the book is better than the film, though he changed nothing. (D) F: He might. But I still like the original book than the film.

Ex Output:
D

Ex Input:
M: Is there a city where it's always warm? ,F: Yes, there are many cities where it's almost always warm. San Diego for example. ,M: Are there any other cities where it's always hot? ,F: Yes, there are quite a few. Most of the cities in the southern part of the United States are hot all year. ,M: But why did so many people live there? ,F: Most people have gotten used to the climate, but there are others who complain about it all the time. ,M: Are there any cities where it rains a lot? ,F: Yes, there are several. 2 good examples are Seattle in the state of Washington and Portland in Oregon. ,M: Tell me about some cold cities. ,F: In the north there are many cities which are very cold in the winter. Boston and Chicago are 2 of them. ,M: Is it always cold in Chicago and Boston? ,F: Oh, no. On the contrary, the weather can be great, especially in the spring and fall.
(A) M: I see. In summer, it is rainy in Chicago and Boston. In winter, it is very hot there. (B) M: Wow. Although it is very pleasant in the spring and autumn, it is very cold in the winter. (C) M: Just a minute! I do not quite follow what you are saying, would you mind repeating that? (D) M: Since Chicago and Boston are in the south, the weather is very pleasant in the spring and autumn.

Ex Output:
B