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: Got period after 4mo and it lasted 11 days,which never happens.I've been experiencing dull uncomfortable on/off pain by my uterus.What could it be? 
 Sentence2: I missed my period for 4 months and now have very heavy bleeding, is that normal?
[EX A]: Dissimilar

[EX Q]: 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?
[EX A]: Similar

[EX Q]: Sentence1: What is the recovery for endoscopic sinus surgery and septoplasty like? 
 Sentence2: I have to undergo endoscopic sinus surgery and septoplasty. How long would it take for me to return to work?
[EX A]:
Similar