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 judges near the artist contacted the tourists .
The artist contacted the judges .

The author helped the professor .
The professor helped the author .

The scientists supported the managers .

The managers supported the scientists .