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.

Example Input: entity: rifle 
before: unscoped 
after: scoped 
attr: composition
Example Output: composition of rifle was unscoped before and scoped afterwards

Example Input: entity: my left hand 
before: by side 
after: holding bill 
attr: location
Example Output: location of my left hand was by my side before and holding the bill afterwards

Example Input: entity: other three competition strokes 
before: unknown 
after: known 
attr: knowledge
Example Output:
knowledge of other three competition strokes was unknown before and known afterwards

