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.

[EX Q]: Sentence1: How to treat razor scar from shaving? 
 Sentence2: How can I prevent razor scars?
[EX A]: Dissimilar

[EX Q]: Sentence1: My 6mo old niece has a pink round spot on each thigh in the same place. My sister is worried it's ring worm. It doesn't bother the baby any. Thoughts? 
 Sentence2: How long do most birthmarks stay for in infants?
[EX A]: Dissimilar

[EX Q]: Sentence1: What is best material for bleaching teeth? 
 Sentence2: I inhaled fumes of bleaching powder and I am having headache and nausea. What symptoms do I look for? Is this some thing that warrants an ER visit?
[EX A]:
Dissimilar