Task: Coherence Classification
Input (English): Sentence 1: Tom had been taking a weight loss supplement. 
 Sentence 3: One of the side effects cause a racing pulse 
 Sentence 4:  Tom thought he was having heart problems 
 Sentence 5:  Tom stopped taking the supplement and the racing pulse stopped 
 Option 1: The supplement had several side effects. 
 Option 2: The supplement had no side effect.
Output (English): Option 1