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.

Input: Consider Input: Sentence1: I've had a bilateral neck dissection for thyroid cancer in 2011. My neck has been swollen for 3 years. Should I see a lymph node specialist?
Sentence2: Is surgery needed to remove an enlarged thyroid gland?

Output: Dissimilar

Input: Consider Input: Sentence1: I'm 5 weeks pregnant and this morning had brownish spotting, my gyn said this is normal and ita was due to implantation, should I be worried?
Sentence2: I am 5 weeks pregnant and has brown spotting and my gynecologist said it it implantation bleeding. Doctor said it is normal. Should I be worried?

Output: Similar

Input: Consider Input: Sentence1: What should I do for prematurely grey hair?
Sentence2: What causes premature greying of hair?
Output: Dissimilar