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 senators called the actors who the banker helped .

SOLUTION: The banker called the senators .

PROBLEM: The secretaries mentioned the judges in front of the student .

SOLUTION: The student mentioned the secretaries .

PROBLEM: The athlete helped the authors next to the doctor .

SOLUTION:
The authors helped the athlete .