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.

Q: Sentence1: My son's adult front tooth is very pointy.  Why is that? 
 Sentence2: Could there be a special reason why the adult tooth that my son has is so pointy?

A: Similar
****
Q: Sentence1: 36 M with clean cardiac echo stress and lipids. No risk factors. Pain in lower back and localized pain in upper left chest for 9 mths. Cardiac? Scared 
 Sentence2: I have been having some chest pain for a few hours now. Can my anxiety be causing it?

A: Dissimilar
****
Q: Sentence1: What would cause T3 (liothyronine) levels to be abnormal,  but tsh/t4 are normal? I'm not pregnant. 
 Sentence2: I have abnormal levels of T3 and normal levels of TSH/T4. What are my treatment options if I am currently pregnant?

A:
Dissimilar
****