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 presidents near the scientist supported the secretary .
The secretary supported the presidents .

The banker stopped the athletes that the actor called .
The athletes stopped the banker .

The student introduced the lawyers who saw the artist .

The artist introduced the student .