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: Dizziness and light headed, what can cause this? 
 Sentence2: I have not been sleeping well for the past few days and it is annoying. Can this be causing dizziness and lightheadedness.
answer:
Similar


question:
Sentence1: I can't see in the dark as well as others can? Do I need carrots or vitamin a? 
 Sentence2: Can deficiency of Vitamin A result in inability to see in dark?
answer:
Dissimilar


question:
Sentence1: What is overdose magnesium to take by mouth? I took 200 mg Is this too much? 
 Sentence2: What is the recommended dose of Magnesium to be taken orally?
answer:

Similar