In this task you are given a medical question pair hand-generated. Your task is to classify a given post into two categories 1) 'Similar' if the given two questions have a same connotation 2) 'Dissimilar' if the given two questions have a different connotation or meaning.

Sentence1: Which listerine is best for cavities? 
 Sentence2: I have cavities and which listerine is best for it?
Similar

Sentence1: Regarding my last question. Everytime i take oxycodone, i become very sensitive to sound. A person talking is too loud. Even no migraine. Known se? 
 Sentence2: Does oxycodone cause increased sensitivity to sound? I have been experiencing this for a while, it feels like someone is talking loud. 
Similar

Sentence1: Is it normal. For your your gums to swell when your on your period? 
 Sentence2: I've been having some swelling and bleeding from my gums. What could be going on?

Dissimilar