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: 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?
answer:
Dissimilar


question:
Sentence1: For the 1st time a lot of clear colorless odorless liquid gushed out of vagina 2 days after sex with my partner of 2 years. Had my period a week later 
 Sentence2: Can I expect some clear, colorless vaginal discharge a week before my period?
answer:
Dissimilar


question:
Sentence1: If you felt a mass in the breast for over 4 yrs now should I be worried? 
 Sentence2: Are all breast masses cancerous?
answer:

Dissimilar