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 student recommended the doctor .

Answer: The doctor recommended the student .


Question: The athlete behind the bankers saw the actors .

Answer: The bankers saw the athlete .


Question: The authors next to the senator called the presidents .

Answer:
The presidents called the authors .