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.

Input: Consider Input: 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?

Output: Dissimilar

Input: Consider Input: Sentence1: Can a urine test show you have kidney stones?
Sentence2: Is a urine test helpful to diagnose kidney stones?

Output: Similar

Input: Consider Input: Sentence1: Is going from 40 mg Nexium to 20 mg Nexium and then 10 mg Nexium granuels a good way of weaning of?Sudden stopping I hear can result in sever rebound.
Sentence2: I have severe gastritis, my doctor incraesed my Nexium dose first from 10mg granules to 20mg Nexium and then to 40 mg Nexium. I am still having heartburn, how long would it take to cast its full effects? Any home remdies?
Output: Dissimilar