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 might cause a slightly dilated common bile duct when all of the other organs look good? 
 Sentence2: What can be done if the common bile duct is dilated?

A: Dissimilar
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Q: Sentence1: If I have an astigmatism , could that be causing daily headaches? I do not wear glasses but i work on a p.C. All day and a lot of bright lighting. 
 Sentence2: What is the treatment for headaches caused by astigmatism?

A: Dissimilar
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Q: Sentence1: I m taking Clomid (clomiphene) since 3/4 month and my cycle 29 days, I m testing my ovulation every time and getting positive on 14/15 days and for 4 days is it ok? 
 Sentence2: On Clomid since 3/4 months and have 29 days cycle. I have ovulation on 14th-15th day and is for 4 days. Is the treatment I am using normal? 

A:
Similar
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