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.

[Q]: The author stopped the actor .
[A]: The actor stopped the author .


[Q]: The president thanked the author next to the artist .
[A]: The author thanked the artist .


[Q]: The actor encouraged the tourists .
[A]:
The tourists encouraged the actor .