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 actors introduced the authors .

SOLUTION: The authors introduced the actors .

PROBLEM: The students supported the tourist .

SOLUTION: The tourist supported the students .

PROBLEM: The athlete stopped the artist .

SOLUTION:
The artist stopped the athlete .