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: I Have a tiny lump on the upper left side of my back. I have had it for about 2 months now. It is like a little grey spot. So please help.? 
 Sentence2: What is the management of tiny lumps that come up on the back and present as spots on the skin?

A: Dissimilar
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Q: Sentence1: How long does it take for sleeping meds to get out of your system? How long does it take anesthesia had to get out of your system. 
 Sentence2: Can sleep medications be used for anesthesia?

A: Dissimilar
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Q: Sentence1: Is it possible for common antacids to neutralize the acid that plaque produces and causes cavities? 
 Sentence2: Can antacids help prevent cavities?

A:
Similar
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