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: When I use the bathroom, my poop are sometimes the size of meat balls or bigger. And it's hard to push I eat fruits vegetables. When using I bleed why? 
 Sentence2: I have constipation on and off and eating meat worsens the bowel movements. I have been using stool softeners and now have diarrhea. What can I do?
answer:
Dissimilar


question:
Sentence1: Please help! What is the survival rate of malignant meningioma? 
 Sentence2: What is the prognosis for a patient of malignant meningioma?
answer:
Similar


question:
Sentence1: I have being getting headaches for about 2 weeks, feeling really tired and fainted once which never happened before and loss of  appetite. what's wrong? 
 Sentence2: What conditions can cause headaches, dizziness and loss of consciousness?
answer:

Similar