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 secretaries mentioned the athletes .
The athletes mentioned the secretaries .

The athletes called the artist next to the manager .
The artist called the manager .

The author encouraged the judges who the managers introduced .

The judges encouraged the author .