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 judges thanked the professor in front of the authors .
[EX A]: The authors thanked the judges .

[EX Q]: The student contacted the artist who the tourists recommended .
[EX A]: The artist contacted the tourists .

[EX Q]: The lawyer near the scientist believed the president .
[EX A]:
The scientist believed the lawyer .