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.

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. 
Similar

Sentence1: 34 year old male. Graying hair. Has been stressful past year of change in life. Does stress affect this in men? Any advice to slow graying/thinning? 
 Sentence2: I am a young male and have got gray hair. Can I use a hair dye? 
Dissimilar

Sentence1: Are there any quick home remedies for slight belly ache and headache? 
 Sentence2: My sister has mild pain abdomen and headache for last 3 days but nothing helped. Do you think we should take her to her doctor? What could be the cause?

Dissimilar