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: What muscles contribute to lower back pain? 
 Sentence2: I lifted heavy weights 2 days ago. I have been expeirencing severe lower back ache ever since. I believe I may have strained my lower back muscles but I am worried it may have caused disc bulge in my lower spine. What could be the chances?

Output: Dissimilar


Input: Consider Input: Sentence1: What are side effects of cyclizine 50mg? 
 Sentence2: I have been experiencing dry mouth and diarrhea for the past 1 week. I have started taking Cyclizine about 10 days back. Could these symptoms be a side effect?

Output: Similar


Input: Consider Input: Sentence1: Should i get a flu vaccine or are there negative side effects? 
 Sentence2: What is the cost of a Flu vaccine shot?


Output: Dissimilar