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 Input:
Sentence1: I wear a nightly mouthguard currently, but i was wondering if any damage from bruxism is reversible over time (does enamel heal)? 
 Sentence2: What does Bruxism do to the teeth in the long run?

Ex Output:
Dissimilar


Ex Input:
Sentence1: 3wks postop GB removal.very nauseous, pain, and headache.getting an ultrasound tomorrow to check for fluids.could this be the cause? 
 Sentence2: What are some post operative effects of gall bladder removal? Can one experience nausea or pain a while after the surgery?

Ex Output:
Dissimilar


Ex Input:
Sentence1: I hit my forehead against the edge of the microwave. Should i get it checked out? 
 Sentence2: I injured my head during a fight, the doctor stitched it up and gave me antibiotics. But I now have a headache. Can it be a concussion?

Ex Output:

Dissimilar