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 scientists .
The scientists saw the manager .

The lawyers who the scientists encouraged introduced the senators .
The senators introduced the scientists .

The tourists avoided the student who the artists saw .

The student avoided the artists .