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: 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: Out of the blue, my heart will just get this pain. It really hurts. Why? 
 Sentence2: I am having on/off chest pain and sometimes it appears out of the blue. Can you suggest any measures to subside it? 
answer:
Dissimilar


question:
Sentence1: What is ovulation and when will female ovulates? 
 Sentence2: I have recently become sexually active and have heard that I should avoid having unprotected sex during ovulation as it can lead to pregnancy. Is that true? How can I know when I would ovulate?
answer:

Similar