Task: Coherence Classification
Input (English): Sentence 1: I got my son a puppy. 
 Sentence 3: My son named him Buster 
 Sentence 4:  The two are always together 
 Sentence 5:  They have become best friends 
 Option 1: But, we later found out that he was allergic from animal fur. 
 Option 2: It was a huge surprise.
Output (English): Option 2