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.

Example Input: Sentence1: Nausea everyday missed period headaches but not pregnant what could be wrong? 
 Sentence2: I feel sick every day in the morning along with throbbing headache. I missed my period by a week this month. Am I pregnant?
Example Output: Dissimilar

Example Input: Sentence1: I have had some pregnancy symptoms and I was four days late and had some brown discharge around the time of period and 2 nurses said they think I am? 
 Sentence2: I missed my period by 4 days but I noticed spotting on the day of my expected due date of period. I experience a few other signs of pregnancy. I asked 2 nurses and they think I can be pregnant. I am very nervous. What do you think are my chances of pregnancy?
Example Output: Similar

Example Input: Sentence1: I have a lump on the back of my head. Its above the hairline in the middle. Its hard and unmovable. It does not pain. Should I be cocerned? 
 Sentence2: I have a lump on my head. Could it be cancer?
Example Output:
Dissimilar