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: Can stem cell research help diseased arteries? 
 Sentence2: I have heard stem cell research can help with diaseased arteries. In what other avenues can stem cell reaserch help? 

A: Dissimilar
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Q: Sentence1: I've had problems with cosntant headaches for 5 years, now they are more like migraines, I've see neurologists, eye specialists and no one has helped me? 
 Sentence2:  I have a history of constant headaches since 5 years. Seems like migraines recently. Consulting a local neurologist or an opthalmologist has not helped either.

A: Similar
****
Q: Sentence1: Can doctors tell me what does your heart rate need to get up to when you exercise? 
 Sentence2: My heart rate goes up to 150 beats per minute after stressful events, exercise and has been fluctuating recently. What is the normal heart rate?

A:
Dissimilar
****