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.

[EX Q]: entity: sander
before: in toolbox
after: in hand
attr: location
[EX A]: location of sander was in toolbox before and in hand afterwards

[EX Q]: entity: wax
before: new
after: used
attr: condition
[EX A]: condition of wax was new before and used afterwards

[EX Q]: entity: tempering valve
before: missing from toilet
after: installed on toilet
attr: state
[EX A]:
state of tempering valve was missing from toilet before and installed on toilet afterwards