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.

Example Input: Sentence1: How do I tell the difference between an allergy and a sinus infection? 
 Sentence2: What are the symptoms that differentiate between allergy and a sinus infection?
Example Output: Similar

Example Input: Sentence1: Is taking 5mg of prednisone daily for a year considered fairly safe? 
 Sentence2: I'm currently 5 weeks pregnant and have asthma. Is it sfae to take prednisone?
Example Output: Dissimilar

Example Input: Sentence1: Can i drink coffee to avoid a headache? 
 Sentence2: Is coffee helpful when you have a headache?
Example Output:
Similar