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: carrots
before: dry
after: wet
attr: moisture
moisture of carrots was dry before and wet afterwards

entity: hot dogs
before: absent
after: present
attr: location
location of hot dogs was absent before and present afterwards

entity: cookie sheet
before: empty
after: full of cookies
attr: fullness
fullness of cookie sheet was empty before and full of cookies afterwards