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.

Sentence1: I have a lump on the back of my head. Its above the hairline in the middle. Its hard and unmovable. It does not pain. Should I be cocerned?
Sentence2: What would a hard, fixed, midline bump in the head that's been there for a few weeks mean?
Similar