TASK DEFINITION: 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.
PROBLEM: entity: mug
before: empty
after: half full of mixture
attr: state

SOLUTION: state of mug was empty before and half full of mixture afterwards

PROBLEM: entity: need
before: undetermined
after: determined
attr: knowledge

SOLUTION: knowledge of need was undetermined before and determined afterwards

PROBLEM: entity: automated system to talk with an agent
before: unactivated
after: activated
attr: activity

SOLUTION:
activity of automated system to talk with an agent was unactivated before and activated afterwards