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: Why do my ears "pop" when I am weight lifting? 
 Sentence2: Is it normal for ears to pop if one lifts heavy weights?

Answer: Similar


Question: Sentence1: I need to know if there is more than one type of achondroplasia? 
 Sentence2: What are some causes of achondroplasia?

Answer: Dissimilar


Question: Sentence1: Is it possible for a person to survive metastatic liver cancer? 
 Sentence2: What is the prognosis of a metastatic liver cancer?

Answer:
Similar