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.

Q: 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?

A: Dissimilar
****
Q: Sentence1: My recent blood test INR 1.12 APTT ratio 1.16 Beta-2 Microglobulin 1.50mg/L are they ok? 
 Sentence2: What all tests are needed if one suspects a clotting disorder? Would some simple lab tests be able to tell?

A: Dissimilar
****
Q: Sentence1: How long does the implantation bleeding last? Is is as heavy as normal periods? 
 Sentence2: When would one have implantation bleeding?

A:
Dissimilar
****