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 students admired the professor in front of the tourists .
answer:
The tourists admired the students .


question:
The actors saw the professor near the tourists .
answer:
The tourists saw the actors .


question:
The professor called the senator who the athlete recommended .
answer:

The senator called the professor .