instruction:
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.
question:
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?
answer:
Dissimilar


question:
Sentence1: What to do if I have some symptoms thought that i don't know if they could be PMS or pregnancy ? 
 Sentence2: How can I differentiate between PMS and pregnancy symptoms?
answer:
Similar


question:
Sentence1: My wife toke Plan B and 6 days later she started to spot for 2 days and stop could she be pregnant or its cause she been of Depo-Provera only a year? 
 Sentence2: My wife took Plan B and 6 days later she had spotting for a couple of days and wanted to know if she is pregnant. She has been off depo since a year.
answer:

Similar