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: Noticed small purple black lumps under foreskin on penis and one on penis head - (this one was already present before sex). Could it be genital warts? 
 Sentence2: Does genital warts present as small purple black lumps on foreskin and head of penis? 
answer:
Similar


question:
Sentence1: My son was in the ER last night for a reaction to his Adderall after they give him Xanax (alprazolam) about 1130 last night he is seen things? 
 Sentence2: I do see things. I have been prescribed Xanax ( Aprazolam) and as advised I took Adderall at 11:30, but I developed allergic reaction after that. Should I go to the ER? 
answer:
Dissimilar


question:
Sentence1: What happens at fetal heart ultrasound? 
 Sentence2: What's the best time to do a fetal heart ultrasound?
answer:

Dissimilar