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 ovulation and when will female ovulates? 
 Sentence2: I have recently become sexually active and have heard that I should avoid having unprotected sex during ovulation as it can lead to pregnancy. Is that true? How can I know when I would ovulate?

A: Similar
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Q: Sentence1: Cortisone shot as a diagnostic tool in the knee what does this mean. If the shot worked does it mean inflammation? If not internal damage. Help 
 Sentence2: Apart from diagnostic tool to differentiate between inflammation and internal injury. Is there any therapeutic benifits of cortsione shot in the knee? 

A: Dissimilar
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Q: Sentence1: What are the causes of lower back pain in women? 
 Sentence2: My mom often says she has lower back ache. My aunt complains of the same. What could be the causes of lower back ache in women?

A:
Similar
****