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 judge believed the artists .
The artists believed the judge .

The manager who the senator encouraged avoided the actors .
The senator avoided the manager .

The athlete in front of the actor introduced the doctor .

The doctor introduced the actor .