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.

[EX Q]: The professors by the athletes advised the managers .
[EX A]: The athletes advised the professors .

[EX Q]: The artist called the actor by the scientists .
[EX A]: The actor called the artist .

[EX Q]: The scientist contacted the tourist who advised the president .
[EX A]:
The president contacted the scientist .