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 lawyers that helped the managers called the president .

Answer: The managers called the lawyers .


Question: The managers contacted the secretary who the doctors advised .

Answer: The doctors contacted the managers .


Question: The scientists in front of the author thanked the professor .

Answer:
The author thanked the scientists .