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: If u have had giardia and had it treated, but your liver enzymes rose what could that be a indication of? 
 Sentence2: I drank water from a stream and read that it could cause giardiasis. I am a little worried since I have been experiencing some mild abdominal pain on the right side, could it be affecting my liver?

SOLUTION: Dissimilar

PROBLEM: Sentence1: Feels like something is stuck in throat, shoulder and chest feels mildly heavy, upper back ache. No more coughing. What can this be? 
 Sentence2: I have no cough, feeling of something stick is throat, upper back ache and chest feels heavy. What are the causes of my symptoms? 

SOLUTION: Similar

PROBLEM: Sentence1: When must I get a flu shot in preparation for moving to assisted living? 
 Sentence2: If I already got a flu shot, can I still suffer from flu?

SOLUTION:
Dissimilar