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: What muscles contribute to lower back pain? 
 Sentence2: I lifted heavy weights 2 days ago. I have been expeirencing severe lower back ache ever since. I believe I may have strained my lower back muscles but I am worried it may have caused disc bulge in my lower spine. What could be the chances?
[A]: Dissimilar


[Q]: Sentence1: What are the common symptoms of bruises? 
 Sentence2: How long does it take for bruises to fade away completely?
[A]: Dissimilar


[Q]: Sentence1: I have osteoarthritis, naproxen 1/2 (500mg) twice a day 4 joint pain, pain getting stronger have an appt. on 2/12/16 with rheumatologist ¿what to do? 
 Sentence2: I was recently diagnosed with osteoarthritis and prescribed on naproxen 400 mg twice a day for the pain. I forgot to inform my doctor about having gastritis for a few years now. Should I avoid taking the medicine? I do not have my followup until a month now. 
[A]:
Dissimilar