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.

Example Input: Sentence1: I have been on klonopin (clonazepam) for my gad for about 4 years, 2mg a day. How long will the withdrawals last? Or when is it out of my system? 
 Sentence2: Hello doctor, I am diagnosed with GAD and was given Klonopin an I have been on the medication for few months. Now, the medication is not helping and my doctor wants to change me to celexa. Can I know about the side effects and efficacy of each? Which medication do you think is better?
Example Output: Dissimilar

Example Input: Sentence1: The 2nd person closest to me had a cold sore and passed it to  the person next to me who hit it and passed it to me (glass pipe) am i at risk? 
 Sentence2: I was wondering if I am at risk of acquiring cold sore, after I had come in close contact with a person who had a cold sore, which was passed from the person next to them. 
Example Output: Similar

Example Input: Sentence1: What increases blood coagulation? 
 Sentence2: What kind of medications or treatment modalities are available for someone who has increased blood coagulation?
Example Output:
Dissimilar