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: Hello, I want to ask you how to draw money. ,F: There is quite a long line in front of the bank windows. Please use this machine.
(A) M: I am sorry. You spoke so rapidly that I did not catch the meaning of what you said. Could you repeat that? (B) M: Since there are few people in the bank, I'll just wait in front of the windows. (C) M: I need to go to the bank after we have meals in this nice restaurant. (D) M: I need to go to the bank after we check out in the hotel.

Ex Output:
A


Ex Input:
M: Did you have a good weekend, Anna? ,F: Yes, it was fantastic. We visited my uncle's farm, he used to run a small hotel. But he recently decided to raise sheep instead. ,M: Sheep? I would think that would be hard, with such a low amount of rain.
(A) F: Yeah, he used to raise sheep, but now he is doing reporting weather for a living. (B) F: Yeah, now he is raising sheep for a living. (C) F: Yes, now he is raising sheep for a living with a lot of rain. (D) F: I’m sorry, I didn’t catch that. Would you mind speaking more slowly?

Ex Output:
B


Ex Input:
M: Too much traffic today. I was late for work again! ,F: I know what you mean. I was stuck for 20 minutes! ,M: Seems to be getting worse every day. ,F: More People are living in the city, more cars on the road. Doesn't seem like the problem will get any easier in the future. ,M: No good for the environment either. Pollution is terrible. Soon we won't be able to breathe the air. ,F: Don't be so gloomy. Everyone's talking about clean energy nowadays. ,M: True, that would be great. But it doesn't solve the traffic problem.
(A) F: Now there are few private cars on the road, the road is full of buses. (B) F: The air pollution around me has improved a lot in recent years, because there are fewer and fewer cars on the road now. (C) F: I’m sorry, I didn’t catch that. Would you mind speaking more slowly? (D) F: The government will push hard for clean energy, and I hope eventually it will surely reduce traffic congestion.

Ex Output:

D