TASK DEFINITION: In this task, you are given a premise sentence. Your task is to write a new sentence by substituting the subject and object (i.e., the input's subject should be output's object and vice versa.). The generated sentence must be fluent and shouldn't change the voice (i.e., passive or active) of the input.
PROBLEM: The judges that the senators mentioned avoided the actor .

SOLUTION: The actor avoided the judges .

PROBLEM: The doctor introduced the scientist who believed the athlete .

SOLUTION: The athlete introduced the doctor .

PROBLEM: The secretaries in front of the artists stopped the senator .

SOLUTION:
The senator stopped the secretaries .