Task: Coherence Classification
Input (English): Sentence 1: Our son-in-law dropped our keys. 
 Sentence 3: We called maintenance 
 Sentence 4:  The elevator company had to come and retrieve the keys 
 Sentence 5:  We all laughed about the incident 
 Option 1: They slipped through the elevator into the shaft. 
 Option 2: He picked them up quickly.
Output (English): Option 1