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 judges recognized the authors behind the president .
answer:
The authors recognized the president .


question:
The tourist called the doctor .
answer:
The doctor called the tourist .


question:
The authors in front of the secretaries encouraged the professors .
answer:

The professors encouraged the secretaries .