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 senator believed the tourist who the scientists contacted .

SOLUTION: The tourist believed the scientists .

PROBLEM: The doctors who called the senators admired the athletes .

SOLUTION: The senators admired the doctors .

PROBLEM: The student who the actor introduced saw the artist .

SOLUTION:
The actor saw the student .