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 students recommended the president who the tourist mentioned .

SOLUTION: The president recommended the tourist .

PROBLEM: The secretary near the senators saw the managers .

SOLUTION: The senators saw the secretary .

PROBLEM: The banker called the artist that believed the tourists .

SOLUTION:
The artist called the the tourists .