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.

[EX Q]: Sentence1: I can't see in the dark as well as others can? Do I need carrots or vitamin a? 
 Sentence2: Can deficiency of Vitamin A result in inability to see in dark?
[EX A]: Dissimilar

[EX Q]: Sentence1: When I watch my girlfriend bad words/insults come to my mind and I have to replace them with good ones. There is often words in my mind.Can it be OCD? 
 Sentence2: I feel hatred towards my girlfriend when I see her and can think of abusive words, which I consciously replace with good ones. Is this a symptom of an OCD?
[EX A]: Similar

[EX 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?
[EX A]:
Dissimilar