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 professors that the artists contacted saw the students .
The artists saw the professors .

The judges that the senators mentioned avoided the actor .
The actor avoided the judges .

The authors that the tourist supported believed the doctor .

The tourist believed the authors .