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.

The artists in front of the student thanked the manager .
The manager thanked the student .

The lawyers recognized the secretaries who introduced the actor .
The actor recognized the lawyers .

The banker contacted the artist by the student .

The artist contacted the banker .