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.

[Q]: The author contacted the actors behind the student .
[A]: The actors contacted the student .


[Q]: The bankers who recommended the president supported the scientists .
[A]: The scientists supported the president .


[Q]: The scientists contacted the presidents who advised the secretaries .
[A]:
The presidents contacted the scientists .