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: Purple fluid filled sack on scalp grew over several months, popped when squeezed. Resembled skin tag. Concerned of cancer. Nothing for doc to check? 
 Sentence2: Can a cancerous lesion on the scalp present with symptoms such as a fluid filled sac occurring over many months with some discharge?

A: Similar
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Q: Sentence1: Hi there are you able to help.me please Dr. Eric Kelts? I think I have a trapped nerve and its traveling from the bottom of my back down my legs, which I think may be siataca I'm not quite sure but I'm in agony. Cant move at all with my back! I struggled 
 Sentence2: What is sciatica and what are the symptoms?

A: Dissimilar
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Q: Sentence1: I am 5/1 and 185 pounds I have hip problims so I don't exersise what is my waite loss options I am 45years old? 
 Sentence2: I am overweight, and unable to exercise due to hip conditions. Do you have any other tips for weight loss?

A:
Similar
****