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: ventilation
before: lacking
after: increased
attr: state
[A]: state of ventilation was lacking before and increased afterwards

[Q]: entity: harness
before: packed away
after: in hand
attr: location
[A]: location of harness was packed away before and in hand afterwards

[Q]: entity: tape
before: rolled
after: straight and long
attr: length
[A]:
length of tape was rolled before and straight and long afterwards