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: What to do if I have a archwire that is not connected to one bracket of the damon braces? 
 Sentence2: Is it bad is my archwire is not connected to one bracket of the damon braces?
[EX A]: Similar

[EX Q]: Sentence1: Please provide advice on discontinuing hctz (hydrochlorothiazide) after developing petechiae on my arms. I have been taking hctz (hydrochlorothiazide) for 3 months and this just started. 
 Sentence2: Is hydrochlorthiazide safe for the elderly?
[EX A]: Dissimilar

[EX Q]: Sentence1: Itopride hydrocloride is this a helpgul medication? 
 Sentence2: I have been prescribed Itopride Hydrochloride? How frequently should I be taking it?
[EX A]:
Dissimilar