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.
--------
Question: 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?

Answer: Similar


Question: Sentence1: Can you take tylenol (acetaminophen) and Advil together? Can you take tylenol (acetaminophen) and Advil together? 
 Sentence2: I am having severe pain, can I take Advil and Tylenol (acetaminophen) together?

Answer: Similar


Question: Sentence1: I know there are alternatives for penicillin, but why dos we not use the others? Are there problems with them, or? (it's for a school projekt) 
 Sentence2: What does penicillin sensitivity present with?

Answer:
Dissimilar