instruction:
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.
question:
The professor encouraged the artist .
answer:
The artist encouraged the professor .


question:
The scientists called the judge that stopped the doctors .
answer:
The judge called the scientists .


question:
The managers who the senator helped recognized the athlete .
answer:

The athlete recognized the managers .