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.

[EX Q]: The presidents avoided the artists .
[EX A]: The artists avoided the presidents .

[EX Q]: The scientist contacted the senator .
[EX A]: The senator contacted the scientist .

[EX Q]: The athletes by the tourists introduced the judge .
[EX A]:
The judge introduced the tourists .