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 bankers recognized the professors .

SOLUTION: The professors recognized the bankers .

PROBLEM: The scientist behind the students recognized the judge .

SOLUTION: The students recognized the scientist .

PROBLEM: The secretaries stopped the athlete that the tourists introduced .

SOLUTION:
The tourists stopped the secretaries .