Task: Dialogue Generation
Input (English): M: Is that Susan over there? ,F: Susan is on a trip with her friends in China now, that's her twin sister Lily. ,M: I don't think so. Lily is traveling in Paris now. ,F: No, she didn't go there, only her friends Marry and Anna went there the other day.
(A) M: You are right. That's Susan. (B) M: Maybe I was mistaken. The girl over there is Mary. (C) M: You are right. That's Lily's twin sister, Susan. (D) M: Excuse me, could you repeat the question?
Output (English): D