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 senators supported the secretaries in front of the tourist .
The secretaries supported the tourist .

The presidents who recognized the author helped the students .
The students helped the author .

The scientist by the judges called the athlete .

The athlete called the scientist .