Task: Coherence Classification
Input (English): Sentence 1: Tim could barely see. 
 Sentence 3: His teacher said he needed glasses 
 Sentence 4:  His mother bought him glasses 
 Sentence 5:  After that he never had vision trouble again 
 Option 1: He didn't want to wear ugly glasses so his mother agreed to get him contacts. 
 Option 2: He had trouble in school.
Output (English): Option 2