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 artists avoided the scientists who recommended the professor .
The scientists avoided the the professor .

The senator who the artist introduced helped the student .
The artist helped the senator .

The bankers in front of the athletes saw the senator .

The senator saw the bankers .