Task: Coherence Classification
Input (English): Sentence1: John had worked hard on his homework but couldn't find it anywhere. Sentence2: Then he came upon some paper scraps on the floor. Sentence3: His dog, Betty, was sitting nearby with a paper scrap in her mouth. Sentence4: John was worried his teacher would think he was lying. 
 Sentence5: John didn't know what to do.
Output (English): Yes