Task: Coherence Classification
Input (English): Sentence 1: The squirrel climbed down the tree. 
 Sentence 3: There were no dogs 
 Sentence 4:  The squirrel chewed on some grass 
 Sentence 5:  The squirrel climbed back up the tree 
 Given Sentence 2: The squirrel looked around the yard.
Output (English): Yes