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.

[Q]: entity: ball 
before: stationary 
after: moving 
attr: motion
[A]: motion of ball was stationary before and moving afterwards


[Q]: entity: pie crust 
before: empty 
after: full 
attr: state
[A]: state of pie crust was empty before and full afterwards


[Q]: entity: power source 
before: missing 
after: found 
attr: location
[A]:
location of power source was missing before and found afterwards


