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: Eddie, you've got to come over and see my parrot. It's learning so many words now. ,M: Really? Last time I saw him all he could say was something that sounded like hello. ,F: Well, now, he can a sing a song too. ,M: Which song did you teach him? ,F: Calorie. You know that popular song by a group of girls right? Actually I didn't teach Goby the words. I was dancing to the song on the radio and he just picked it up. ,M: That's a pretty smart bird. I'll come over after school today. Let's take a video of him and put it on line.
(A) F: I'm sorry, I don't understand. Could you say it again? (B) F: I will send you the link, so you can watch the video online after school today. (C) F: Come to my house after school, I will take videos of you. (D) F: My bird would be waiting for you to teach him more words after school today.

Ex Output:
A

Ex Input:
F: How soon will Nancy come back?
(A) M: Well, I see Amy just once every two months. (B) M: Thanks for your concern. She will come back in a month. (C) M: I am afraid I did not quite catch what you were saying. Please repeat it. (D) M: You are right! Amy will go the university in a month.

Ex Output:
B

Ex Input:
F: Ralph, my stomach aches. ,M: Mine too, honey. ,F: I think it was the fish or the meat we ate in the restaurant. ,M: It might have been. ,F: Or the soup. ,M: No, it couldn't have been the soup. Because I didn't have any. Little Jimmy had some and he's alright. ,F: Of course, we sat in the sun for a long time, but I suppose it couldn't have been the sun. ,M: That's true. Now what else did we both eat? Only those lovely apples I bought at the market. It could have been them. We used to eating apples and you wash them. ,F: No, I didn't. I thought you have. ,M: Jennie, I didn't wash them. I was sure you did. It must have been the apples then. Oh, I feel worse now. Let's go see a doctor.
(A) F: Yes. I am sure that the fish is the reason why we have stomachache. (B) F: Just a minute! I do not quite follow what you are saying, would you mind repeating that? (C) F: I don't think the apples is the reason. I had washed them before we had them. (D) F: I am sure the apples is the reason. We should go to the hospital now.

Ex Output:
D