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:
M: What did you buy at the market? ,F: I bought some special local products. ,M: You seem to have bought the whole market. ,F: Yes. I really wanted to do so. I love those handicrafts, especially the papercuts. ,M: Papercuts are all handmade. Let me see the papercuts you bought. Oh they're all animals. ,F: Aren't animals. The main content of Chinese paper cuts. ,M: Alright animals are the most common theme in paper cuts, but there are other themes. ,F: I will buy some tomorrow. ,M: Why do you want to buy so many?
(A) F: Because I want to buy some paper-cuts tomorrow and give them to my friends. (B) F: I’m sorry, I don’t understand. Could you say it again? (C) F: I want to learn to make paper-cuts tomorrow and give them to my friends. (D) F: I didn't buy anything from the market. Tomorrow I will send paper-cuts to my friends.

Ex Output:
A


Ex Input:
M: Welcome back to your student union radio station. I'm with Catherine, who just successfully climbed the Great Mountain, Mont Blanc. Actually, she once did. The same climb in 2007. Catherine, was it easier the second time around? ,F: In many ways. They were totally different experiences. The first time I went as part of an organized group. We took 4 days to reach the top. This year, I decided to go alone with just one overnight stop, actually you're never really alone. It's all been crowded up there. The first climb, was quite difficult is the weather was very changeable, and we found ourselves climbing in very cold windy conditions. The weather this time was wonderful. Plus. I spent a few days before in chamonix and got myself more used to the height. If it's certainly made it easier, you can also achieve the same thing by climbing some of the smaller mountains first.
(A) M: It's a good idea to spend a few days in Chamonix, which makes climbing easier. (B) M: You are so great! Betty, I should learn to you and make a detailed plan. (C) M: I am sorry. You spoke so rapidly that I did not catch the meaning of what you said. Could you repeat that? (D) M: You climb smaller mountains for training before your third time to climb Everest.

Ex Output:
A


Ex Input:
M: Good morning. Can I help you, ma'am? ,F: Good morning, I'm looking for a coat for my younger sister. Her birthday is coming. I want to give her a good coat. Could you show me some? ,M: How about this one? ,F: It's nice. I like it! ,M: Which color do you want? ,F: Blue is her favorite color, but I think she looks better in yellow. Do you have a yellow one? ,M: Yes, we have. Which size would you like, medium or large? ,F: Neither, I would like a small. ,M: Na, I'm sorry. All the small yellow coats have just sold out. What about the green one? It looks nice, too. ,F: OK. How much is it? ,M: 170 UN. I can give you 10% off. ,F: Great! Here is 155 UN. Please keep the change.
(A) M: I didn’t hear you. Please could you tell me again? (B) M: Thank you, and here is your green coat. (C) M: Thanks, and take the fancy yellow coat. (D) M: You are very lucky, we only have one blue left.

Ex Output:

B