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 students encouraged the senators .
The senators encouraged the students .

The senator thanked the judges who supported the president .
The president thanked the senator .

The lawyers behind the athlete stopped the student .

The student stopped the lawyers .