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 secretary behind the manager introduced the judges .

SOLUTION: The judges introduced the manager .

PROBLEM: The athletes in front of the artist called the judge .

SOLUTION: The judge called the artist .

PROBLEM: The manager saw the scientists .

SOLUTION:
The scientists saw the manager .