Task: Dialogue Generation
Input (English): F: Do you play any instruments? ,M: Yes, I played the piano. What about you? ,F: I play the violin and the flute. I've been playing the flute since I was a child, but I started playing the violin about 5 years ago. I'm not very good, but I'm trying to get better. ,M: The violin is hard. I have also been playing the piano since I was a kid. I was also in a singing group when I was in high school.
(A) F: That's really nice. I have been playing the violin for about five years. (B) F: I’m sorry, I don’t understand. Could you say it again? (C) F: That's really nice. I have been playing the flute for about five years. (D) F: That's really nice. I have been playing the violin since I was in high school.
Output (English): A