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 banker mentioned the senator behind the manager .
[A]: The senator mentioned the manager .


[Q]: The artist by the tourist encouraged the author .
[A]: The author encouraged the artist .


[Q]: The author encouraged the president that the doctor believed .
[A]:
The doctor encouraged the author .