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.

[EX Q]: Sentence1: What is best material for bleaching teeth? 
 Sentence2: I inhaled fumes of bleaching powder and I am having headache and nausea. What symptoms do I look for? Is this some thing that warrants an ER visit?
[EX A]: Dissimilar

[EX Q]: Sentence1: I'm stressed about being pregnant and my period started getting light and short, could my stress cause this? 
 Sentence2: Can stress cause the period to last shorter? Or am I pregnant?
[EX A]: Similar

[EX Q]: Sentence1: Can chronic gastritis lead to other conditions such as gastroparesis, obstructions, stomach cancer, etc? 
 Sentence2: I'm a 20 yr old male diagnsed wiht H.pylori infection and on treatment for it. Is there a risk of stomach ulcer? My grandfather died of stomach cancer recently.
[EX A]:
Dissimilar