You will be given a definition of a task first, then some input of the task.
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.

Sentence1: 2 years ago i had lyme ab screen mildly elevevated but western blot all non reactive. Now im testing pos for igm 23 and igm 41. What does this mean?
Sentence2: Can Lyme ab test positive after 2 years of exposure? I'm not sure if it can stay positive for this long.
Output:
Similar