Task: Coherence Classification
Input (English): Sentence 1: A few years ago, my wife left town for a few days. 
 Sentence 3: I decided to wait it out until she returned to town 
 Sentence 4:  Immediately after she returned, we ended up going to the hospital 
 Sentence 5:  I had brain surgery and ended up being glad that I waited for her 
 Given Sentence 2: While she was gone, I started having terrible headaches.
Output (English): Yes