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.
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Question: Sentence1: I had a root canal 3 months ago but tooth is still sensitive to hot. What could be the reason? 
 Sentence2: I have cavities in my tooth and my dentist advised to get root canal done. Can you tell me if the procedure is painful and how much time will it take?

Answer: Dissimilar


Question: Sentence1: Why is it that some nutrients bypass the liver entirely? 
 Sentence2: Are all medications absorbed by the liver?

Answer: Dissimilar


Question: Sentence1: Why does my arm always fall asleep? Like to the point where i can't move it at all 
 Sentence2: Is it normal for my arm to feel numb all the time? I cannot even move it. :( 

Answer:
Similar