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 doctors advised the scientist .
[A]: The scientist advised the doctors .


[Q]: The president encouraged the actors .
[A]: The actors encouraged the president .


[Q]: The manager who the artist introduced called the student .
[A]:
The student called the artist .