Task: Coherence Classification
Input (English): Sentence 1: My father had congestive heart failure in 1995. 
 Sentence 3: They were able to control it and he spent a few nights there 
 Sentence 4:  He had to continually monitor his weight 
 Sentence 5:  He died of a heart attack three years later 
 Given Sentence 2: He walked to the hospital at night.
Output (English): Yes