Task: Coherence Classification
Input (English): Sentence 1: Dan went to the beach to surf. 
 Sentence 3: Dan was afraid because he never encountered a shark before 
 Sentence 4:  Dan wondered whether he should stay or move fast away from the shark 
 Sentence 5:  Dan chose to stay and the shark went away 
 Option 1: But suddenly an inflatable tube came up near him. 
 Option 2: But suddenly a shark came up near him.
Output (English): Option 2