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 president behind the lawyers thanked the actor .
The actor thanked the lawyers .

The secretary called the artist near the senators .
The artist called the secretary .

The scientist near the manager contacted the bankers .

The manager contacted the scientist .