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: On the top right side of my head, I have this random pulsing feeling? Like someone is tapping their finger on this one small spot. It's not painful.
Sentence2: What causes a pulsatile feeling on the right side of the forehead?

Ex Output:
Similar

Ex Input:
Sentence1: What might cause a slightly dilated common bile duct when all of the other organs look good?
Sentence2: What can be done if the common bile duct is dilated?

Ex Output:
Dissimilar

Ex Input:
Sentence1: Is it safe to use silicone gel sheet on acne scar on the face?
Sentence2: What is the safety of using silicone gel sheet on acne scar on the face?

Ex Output:
Similar