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.

[Q]: Sentence1: Should I remove a bullet if it's still inside? 
 Sentence2: How long does a wound caused by a bullet take to heal? 
[A]: Dissimilar


[Q]: Sentence1: Are there any serious after-effects of a heroin overdose? 
 Sentence2: Can calling 911 help if my friend has overdosaged on heroin?
[A]: Dissimilar


[Q]: Sentence1: My period is usually heavy and lasts five days. This month it came light and only lasted 3 days. I had intercourse 2 days after my last period. 
 Sentence2: I had intercourse 2 days before my last period. Will it make my period irregular?
[A]:
Dissimilar