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: My D is experiencing blood on end of stool & on tissue. 3rd day in a row but only on morning bm! Have GP appointment for 5 days, is this soon enough? 
 Sentence2: I have been experiencing blood in stools from past 5 days. Visited my GP 3 days ago, who said it needs to get tested. Should I be worried? 

SOLUTION: Dissimilar

PROBLEM: Sentence1: 34 year old male. Graying hair. Has been stressful past year of change in life. Does stress affect this in men? Any advice to slow graying/thinning? 
 Sentence2: I am a young male and have got gray hair. Can I use a hair dye? 

SOLUTION: Dissimilar

PROBLEM: Sentence1: What is the definition or description of: activity modification? 
 Sentence2: What are some exercises and changes to lifestyle that I can do? I'm not sure but the doctor has advised me "activity modification". What does it mean?

SOLUTION:
Similar