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: 16, never had intercourse, no STDs known, vaginal irritation, sometimes pain, not much pain with urination, irritation through the entire day. 
 Sentence2: I am a virgin and never had an intercourse. Can I get STDS?
answer:
Dissimilar


question:
Sentence1: Is mental illness like bipolar hereditary? 
 Sentence2: What are the symptoms of mental illnesses like bipolar?
answer:
Dissimilar


question:
Sentence1: Got period after 4mo and it lasted 11 days,which never happens.I've been experiencing dull uncomfortable on/off pain by my uterus.What could it be? 
 Sentence2: I missed my period for 4 months and now have very heavy bleeding, is that normal?
answer:

Dissimilar