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 banker helped the judges .
answer:
The judges helped the banker .


question:
The doctors contacted the bankers behind the professors .
answer:
The professors contacted the doctors .


question:
The lawyers next to the actors helped the banker .
answer:

The actors helped the lawyers .