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: How many hours do you have to walk to see weight loss? How long will it take before i see noticeable weight loss? 
 Sentence2: I am striving for weight loss. Could you tell me how many hours should I walk, before I see the noticeable change? 

A: Similar
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Q: Sentence1: What effects can I expect from velcade (bortezomib) chemotherapy? 
 Sentence2: Are there any better options for chemotherapy other than velcade?

A: Dissimilar
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Q: Sentence1: Are monochorionic-diamniotic twins usually healthy at birth? 
 Sentence2: Hello, what are the chances of monochorionic-diamniotic twins? Is it rare?

A:
Dissimilar
****