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 students recognized the presidents .

SOLUTION: The presidents recognized the students .

PROBLEM: The judges that called the author saw the artist .

SOLUTION: The author saw the judges .

PROBLEM: The doctor recognized the artists who the managers called .

SOLUTION:
The artists recognized the doctor .