Task: Dialogue Generation
Input (English): M: Hey, Helen! Want to play a new game I learned in school today? ,F: Yeah. How do you play it? ,M: You stand over there by the side of the house. I'm going to throw this ball at you. ,F: Wait a minute! That's a big ball! You're going to hurt me!
(A) M: Don't worry. I believe you can catch it!  We have played it many times. (B) M: Don't worry. Although it is a big ball, I'm not going to throw it too hard. (C) M: Just a minute! I do not quite follow what you are saying, would you mind repeating that? (D) M: Although you're worried about the ball is too heavy, it won't hit you.
Output (English): B