TASK DEFINITION: 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.
PROBLEM: The senators recognized the judges .

SOLUTION: The judges recognized the senators .

PROBLEM: The president who the doctor recommended introduced the tourist .

SOLUTION: The doctor introduced the president .

PROBLEM: The doctor who the lawyers avoided called the judge .

SOLUTION:
The judge called the lawyers .