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: Hi. I have been having ear pain in my right ear. It started on Thursday maybe and It just keeps hurting.? 
 Sentence2: I have been having constant pain in my right ear since Thursday, What should I do?
Similar

Sentence1: I took Plan B on Feb. 11th, 2015 after having unprotected sex two days before. Now tonight I had protected sex, but the condom broke. I am wondering if the Plan B is still effective 5 days later? And if not, is it safe to consume another Plan B pill? 
 Sentence2: Hello doctor, I am of 18 years age and I had unprotected sex. Can I take Plan B? Do I need a prescription?
Dissimilar

Sentence1: What are some illnesses of the lymphatic system? 
 Sentence2: I think I have symptoms of illness of lymphatic system. How can I treat it? 

Dissimilar