TASK DEFINITION: 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.
PROBLEM: 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?

SOLUTION: Dissimilar

PROBLEM: Sentence1: Can dental sealants be safely removed if there is decay under them without the use of a drill? If so, how will it be done? 
 Sentence2: I have tooth decay and I got dental sealant on my tooth but I want to get it removed. I am wondering if that can be done safely without using drill. If yes, can you tell me the procedure of its removal? 

SOLUTION: Similar

PROBLEM: Sentence1: My wife toke Plan B and 6 days later she started to spot for 2 days and stop could she be pregnant or its cause she been of Depo-Provera only a year? 
 Sentence2: I am on BC pills yaz and I had unprotected intercourse. Should I take Plan B? 

SOLUTION:
Dissimilar