Task: Dialogue Generation
Input (English): F: I'm returning the book you lent me. ,M: That isn't my book. ,F: Isn't it? That's funny. It must belong to your brother, then.
(A) M: No, it belongs to me. (B) M: I didn’t hear you. Please could you tell me again? (C) M: Yes, it belongs to my brother. (D) M: No, it belongs to your brother.
Output (English): C