TASK DEFINITION: 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.
PROBLEM: Sentence1: How to tell if nuvaring side effects or early signs of pregnancy? 
 Sentence2: How can I differentiate between side effects of nuvering and early pregnancy symptoms?

SOLUTION: Similar

PROBLEM: Sentence1: My first sonogram said I was 7 weeks pregnant due date 3/22. Next appointment (5 weeks later) sono measured bby at 13weeks. Duedate changed to 3/15. Y? 
 Sentence2: In my first sonogram at 7 weeks my due date is 3/22 and now at 13 weeks my due date is 3/15. Which is correct?

SOLUTION: Similar

PROBLEM: Sentence1: What might cause a slightly dilated common bile duct when all of the other organs look good? 
 Sentence2: What can be done if the common bile duct is dilated?

SOLUTION:
Dissimilar