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.

[EX Q]: The secretary admired the judges .
[EX A]: The judges admired the secretary .

[EX Q]: The judge in front of the lawyers stopped the professors .
[EX A]: The professors stopped the judge .

[EX Q]: The artists in front of the author introduced the doctor .
[EX A]:
The author introduced the artists .