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.

The judges contacted the doctor that saw the bankers .
The doctor contacted the judges .

The lawyers next to the actors helped the banker .
The actors helped the lawyers .

The authors next to the doctors advised the banker .

The banker advised the authors .