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: What does spinning around do to the brain to cause you to vomit? 
 Sentence2: I have been noticing ringing in the ears, spinning sensation of the head, vomiting and headache. Does it mean something is wrong with my brain?

Answer: Dissimilar


Question: Sentence1: I bent over while sitting in a chair to pick up something and felt like something popped and I am now having pain on my left side around my ribs? 
 Sentence2: I heard a pop on bending over while sitting in a chair causing pain in the rib area. My doctor ordered a chest Xray, that came back normal. I am relieved that it is not a fracture. What can I try for relief from the pain?

Answer: Dissimilar


Question: Sentence1: Which is better for children to boost their immunity after illness 7seas tablets or minadex multivitamin syrup? 
 Sentence2: What does Minadex and 7seas contain? Do I need a prescription to get them?

Answer:
Dissimilar