Task: Coherence Classification
Input (English): Sentence 1: Robert had a very big chest. 
 Sentence 3: After much thought he decided to open the chest 
 Sentence 4:  He had to go to a locksmith to open it 
 Sentence 5:  Inside, he found a lot of money 
 Option 1: He put his clothe inside it. 
 Option 2: In fact, he had never opened the chest.
Output (English): Option 2