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: Are Sympathetic Nerve Blocks effective at calming the sympathetic system which causes angina and migraines? If not, why not? Would seem logical. 
 Sentence2: Does an active sympathetic system cause angina and migraines? Wouldn't nerve blocks help in such cases?
[A]: Similar


[Q]: Sentence1: I am a pediatric Hodgkin's lymphoma survivor. I have developed horizontal double vision. I have an ophthalmology appt. How worried should I be? 
 Sentence2: Does Hodgkins Lymphoma cause double vision?
[A]: Dissimilar


[Q]: Sentence1: 1 day missed period and vaginal area is dry, why? 
 Sentence2: What are the causes of vaginal dryness?
[A]:
Dissimilar