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.
--------
Question: Sentence1: How to treat razor scar from shaving? 
 Sentence2: How can I prevent razor scars?

Answer: Dissimilar


Question: Sentence1: What kind of bacteria or viruses does a semen culture detect or look for? 
 Sentence2: Which bacteria and viruses can a semen culture detect?

Answer: Similar


Question: Sentence1: I was curious how far along i'd be if the ultrasound said 6.5 cm/1.3/27 Hz at the top of my picture. ? 
 Sentence2: I am pregnant and my ultrasound scan reports show 6.5cm/1.3/27 Hz at the top of my picture. Does my baby have birth defects?

Answer:
Dissimilar