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 manager saw the secretaries that contacted the artist .
The secretaries saw the the artist .

The presidents avoided the artists .
The artists avoided the presidents .

The senator saw the professors by the students .

The professors saw the students .