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 senator by the artists helped the managers .
answer:
The managers helped the senator .


question:
The doctor who helped the tourists advised the professor .
answer:
The professor advised the tourists .


question:
The tourists believed the doctor .
answer:

The doctor believed the tourists .