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 Input:
entity: skewer
before: in
after: out
attr: state

Ex Output:
state of skewer was in before and out afterwards

Ex Input:
entity: liquid
before: thinner
after: thick
attr: thickness

Ex Output:
thickness of liquid was thinner before and thick afterwards

Ex Input:
entity: caterpillars
before: present
after: absent
attr: location

Ex Output:
location of caterpillars was present before and absent afterwards