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 some illnesses of the lymphatic system? 
 Sentence2: I think I have symptoms of illness of lymphatic system. How can I treat it? 

SOLUTION: Dissimilar

PROBLEM: Sentence1: Is a brain injury/ brain damage considered to be the same as a mental illness? 
 Sentence2: May I know if brain injury and damage is same as mental illness?

SOLUTION: Similar

PROBLEM: Sentence1: How long does it take to heal from a tubuligation reversal? 
 Sentence2: I just healed up from tubal ligation, I am thinking of going for reversal. Is it possible? 

SOLUTION:
Dissimilar