Part 1. 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.
Part 2. Example
 entity: arm 
before: free 
after: grasped 
attr: state
Answer: state of arm was free before and grasped afterwards
Explanation: The attribute state of the entity arm was free before and afterwards it was grasped hence the output.
Part 3. Exercise
entity: bottle 
before: uncovered 
after: covered by sweater 
attr: state
Answer:
state of bottle was uncovered before and covered by the sweater afterwards