TASK DEFINITION: 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.
PROBLEM: Sentence1: What are the main signs of staph infection? 
 Sentence2: How do I know if I have a staph infection?

SOLUTION: Similar

PROBLEM: Sentence1: All of a sudden my ears stopped producing ear wax. What could be the cause? 
 Sentence2: Can I use q-tip to clear the ear wax?

SOLUTION: Dissimilar

PROBLEM: Sentence1: What is the retinal pigment epithelium? 
 Sentence2: Do age related changes affect retinal pigment epithelium?

SOLUTION:
Dissimilar