Given the task definition and input, reply with output. 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: Worried about lung cancer. Up back pain over 1 year now. Had chest CT 8 months ago it was ok. 3 mris of throastic ok. Some cervical stenosis. Worry?
Sentence2: I have upper back pain over 1 year and took CT scan 8 months back and it was okay. Had 3 MRI's of thorax okay. Had some cervical stenosis and should I worry?
Similar