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.

Q: Sentence1: How do I tell the difference between an allergy and a sinus infection? 
 Sentence2: Can you tell me some OTC medications for allergies and sinus infection?

A: Dissimilar
****
Q: Sentence1: Why is my period blood dark brown, stopped after 4 hrs. Is this a period? 
 Sentence2: What does brown vaginal discharge mean?

A: Similar
****
Q: Sentence1: What are the symptoms of having a meniscal root tear in the knee? Please explain 
 Sentence2: Hello doctor, I am recovering from meniscal tear injury and I have practice foot ball match tomorrow. I have no symptoms at present except the mild pain. Can I go for practice tomorrow?

A:
Dissimilar
****