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.

The authors thanked the artist .
The artist thanked the authors .

The senators introduced the judge that stopped the managers .
The judge introduced the the managers .

The secretaries who contacted the banker encouraged the athletes .

The banker encouraged the secretaries .