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: My back hurts on my right side? 
 Sentence2: What causes back pain on the right side?
[EX A]: Similar

[EX Q]: Sentence1: My son was in the ER last night for a reaction to his Adderall after they give him Xanax (alprazolam) about 1130 last night he is seen things? 
 Sentence2: I do see things. I have been prescribed Xanax ( Aprazolam) and as advised I took Adderall at 11:30, but I developed allergic reaction after that. Should I go to the ER? 
[EX A]: Dissimilar

[EX Q]: Sentence1: Sharp, localised pain on top of head, about 10 degrees from the centre, in a slight indentation of my parietal bone. Recurrent for a few days. Cause? 
 Sentence2: I have sharp pain on the top of head over the region of indentation on my parietal bone. Can you tell me what could be the cause?
[EX A]:
Similar