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.

entity: tape 
before: rolled 
after: straight and long 
attr: length
length of tape was rolled before and straight and long afterwards

entity: camera 
before: ungathered 
after: gathered 
attr: location
location of camera was ungathered before and gathered afterwards

entity: tmp 
before: idle 
after: being used 
attr: state

state of tmp was idle before and being used afterwards

