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: Would 3 normal u/s and 5 low d-dimers over the course of 4 weeks rule out dvt? Even though leg pain is still there? No redness or swelling. 
 Sentence2: How can we rule out DVT? What symptoms should I look out for and what tests can be done?
answer:
Similar


question:
Sentence1: Feels like something is stuck in throat, shoulder and chest feels mildly heavy, upper back ache. No more coughing. What can this be? 
 Sentence2: I have no cough, feeling of something stick is throat, upper back ache and chest feels heavy. What are the causes of my symptoms? 
answer:
Similar


question:
Sentence1: I smoke and drink alcohol, is my sperm healthy? Can it last 7 days inside the uterus? 
 Sentence2: Does smoking and drinking alcohol can affect the ability of sperm to remain viable inside the uterus for 7 days? 
answer:

Dissimilar