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.

Sentence1: If pus in stool is occasionally is there any problem? 
 Sentence2: My stool has pus in it, the doctor thought it to be problematic. I am advised colonoscopy. Is that procedure painful? 
Dissimilar

Sentence1: I took Plan B on Feb. 11th, 2015 after having unprotected sex two days before. Now tonight I had protected sex, but the condom broke. I am wondering if the Plan B is still effective 5 days later? And if not, is it safe to consume another Plan B pill? 
 Sentence2: Hello doctor, I am of 18 years age and I had unprotected sex. Can I take Plan B? Do I need a prescription?
Dissimilar

Sentence1: Been prescribed steroid nasal spray for post nasal drip. Symptoms are very uncomfortable is there something different I can do? How important is it? 
 Sentence2: How long can I continue to use steroid nasal spray for post nasal drip?

Dissimilar