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 would happen if someone mixed femara (letrozole) with human growth hormones? 
 Sentence2: What are the uses of Letrozole and HGH?

A: Dissimilar
****
Q: Sentence1: What to do if I have a very flat butt. it almost doesn't exist. what are some tips/exercises that could give me a nice butt? 
 Sentence2: Can you share some butt enhancing exercises with me? Some that actually work? 

A: Similar
****
Q: Sentence1: I'm on my period, and i had unprotected sex, and he came inside me. 2 days later, the bleeding from my period stopped. Is that a chance of pregnancy? 
 Sentence2: I had unprotected sex and now my period is expected on 14th June and now 2 days before I am spotting and is it implantation?  

A:
Dissimilar
****