instruction:
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.
question:
Sentence1: My Patella is tender to touch, and hurts and pops when the knee is bent. There isn't any noticeable swelling. But there is pressure around patella. 
 Sentence2: I patella is tender but there is no visible swelling in that area. It hurts and pops on bending my knee and I feel pressure around patella. What could be the cause. 
answer:
Similar


question:
Sentence1: I had back surgery 3 years ago and left with numbness in right leg and hip area. Could this treatment help me? L3-5 fusion with hardware 
 Sentence2: Can one have pain and numbness after a back surgery?
answer:
Dissimilar


question:
Sentence1: What is a?Multi cystic pancreas? 
 Sentence2: Can multicystic pancreas cause cancer in the long term?
answer:

Dissimilar