Task: Coherence Classification
Input (English): Sentence 1: I heard knocking at the rear of the apartment. 
 Sentence 3: I didn't hear an answer 
 Sentence 4:  I grabbed a baseball bat for for protection 
 Sentence 5:  The knocking was just the wind so I didn't need the bat 
 Given Sentence 2: I hollered who's there at the back door.
Output (English): Yes