Task: Coherence Classification
Input (English): Sentence 1: My friend Sally was singing at a recital, and needed someone on piano. 
 Sentence 3: We practiced for weeks until we worked together perfectly 
 Sentence 4:  When the big day came, we both went up and did our best 
 Sentence 5:  The audience loved us 
 Given Sentence 2: I told her I would accompany her.
Output (English): Yes