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: Look at the monkeys running around on the rocks. They are so lovely. ,M: Yes, their surrounding seems to suit them very well. Let's go over and see the panda now.
(A) F: Just a minute! I do not quite follow what you are saying, would you mind repeating that? (B) F: Before we go, do you know where is the toilet in this zoo? (C) F: Excuse, how much are these in total? (D) F: I can't find this museum's exit.

Ex Output:
B


Ex Input:
F: Hey, Mike, you're back. How was your summer camping? ,M: Life in the great outdoors isn't exactly what I expected. ,F: What did you do everyday? ,M: First, everyone had to get up at 5:30 AM. Next, we had to make our beds before our camp adviser came to inspect the place. Then we had breakfast around 6:30 AM. After that, we had some free time, so I'd go down to the nearby stream to fish for a couple of hours. But yesterday, the only thing I caught was an old shoe and a tree branch. Then I slipped and fell in the stream and lost my fishing pole. In the afternoon, there were different activities we could choose from like swimming, horseback riding, and hiking.
(A) F: Why did you have to tidy up your sister's room? (B) F: You are so energetic for tidying up your room so early. (C) F: I am really sorry, I did not catch that. Would you slow down, please? (D) F: Are you sure you have to energy to go down the stream without breakfast?

Ex Output:
B


Ex Input:
F: Hello, Home Cleaning Service. Can I help you? ,M: Yes, I need to have a document delivered. ,F: Sorry, we don't have delivery service. You may probably try 8460330 at Express Delivery Service, please? ,M: Oh, thanks.
(A) F: Just a minute! I do not quite follow what you are saying, would you mind repeating that? (B) F: You're welcome. Our Home Cleaning Service can help you deliver your document. (C) F: You're welcome. Express Delivery Service will help you clean your house later. (D) F: You're welcome. We are glad to offer you the phone number of Nanny Service.

Ex Output:

A