Definition: Given an entity, a before event, an after event, and an attribute related to the entity, generate a sentence as output. Your sentence should show the changes in the attribute of the entity.
Input: entity: you 
before: unaware of long island railroad's ability to get you to jfk airport 
after: now aware of long island railroad's ability to get you to jfk airport 
attr: knowledge

knowledge of you was unaware of the long island railroad's ability to get you to jfk airport before and now aware of the long island railroad's ability to get you to jfk airport afterwards