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.
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Question: The presidents recognized the actor by the tourists .

Answer: The actor recognized the tourists .


Question: The athletes stopped the tourists .

Answer: The tourists stopped the athletes .


Question: The scientist thanked the secretary who the artist advised .

Answer:
The artist thanked the scientist .