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.
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Question: entity: you
before: planting trees
after: collecting fruits
attr: state

Answer: state of you was planting trees before and collecting fruits afterwards

Question: entity: grid
before: vacant
after: full
attr: volume

Answer: volume of grid was vacant before and full afterwards

Question: entity: tape
before: rolled
after: unrolled
attr: length

Answer:
length of tape was rolled before and unrolled afterwards