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 scientist admired the professor next to the athlete .
answer:
The athlete admired the scientist .


question:
The scientists helped the doctors in front of the authors .
answer:
The doctors helped the authors .


question:
The president that the students introduced mentioned the banker .
answer:

The banker mentioned the students .