instruction:
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.
question:
The artist by the authors contacted the lawyers .
answer:
The lawyers contacted the artist .


question:
The author by the actor advised the lawyer .
answer:
The actor advised the author .


question:
The bankers believed the judges behind the presidents .
answer:

The judges believed the presidents .