Task: Coherence Classification
Input (English): Sentence 1: Eugene was a drug addict. 
 Sentence 3: Then his mom sent him to rehab 
 Sentence 4:  Eugene learned many valuable skills there 
 Sentence 5:  Now he is drug free! 
 Option 1: He decided to go cold turkey and quit. 
 Option 2: He tried to quit on his own, but couldn't.
Output (English): Option 2