Task: Coherence Classification
Input (English): Sentence 1: Bob was always upset about his looks. 
 Sentence 3: He had his large nose nose shrunk 
 Sentence 4:  But he still wasn't happy 
 Sentence 5:  Bob ended up getting plastic surgery 20 more times 
 Option 1: So he saved up money to get plastic surgery. 
 Option 2: But he didn't believe in plastic surgery.
Output (English): Option 1