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 president thanked the lawyer .

SOLUTION: The lawyer thanked the president .

PROBLEM: The students in front of the senator contacted the manager .

SOLUTION: The manager contacted the students .

PROBLEM: The banker recommended the artist .

SOLUTION:
The artist recommended the banker .