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.

[EX Q]: Sentence1: How can I prevent orthostatic hypotension? 
 Sentence2: What are the symptoms of orthostatic hypotension?
[EX A]: Dissimilar

[EX Q]: Sentence1: Is it normal for the stomach to increase in size after receiving cpr? 
 Sentence2: Does a CPR cause the stomach to increase in size?
[EX A]: Similar

[EX Q]: Sentence1: I have a possible scaphoid wrist fracture. How can I tell without going to the hospital? 
 Sentence2: Does a scaphoid wrist fracture always need surgery?
[EX A]:
Dissimilar