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: What is the cause and the solution of what seems to be a traveling pocket of gas up and down my back, chest, rib cage with sometimes a griping pain? 
 Sentence2: My sister says she has a gas buildup causing gripping pain sometimes, that travels up and down her back, chest, rib cage for last 1 week. Her diet is very unhealthy and she doesn't drink water. She has scoliosis. Do you think both are related?

A: Dissimilar
****
Q: Sentence1: Is it okay for 18 year olds to take thermogenics? 
 Sentence2:  I have heard a lot of 18 year old taking thermogenics. Could you tell me what we mean by thermogenics? 

A: Dissimilar
****
Q: Sentence1: Brain epidermoid, is it the same as a  meningioma tumor the difference between the two       3cm brain stem / 8cm front lobe? 
 Sentence2: Is a brain epidermoid and a meningioma one and the same thing?

A:
Similar
****