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 scientist admired the lawyer .
The lawyer admired the scientist .

The secretaries thanked the doctors .
The doctors thanked the secretaries .

The authors in front of the banker stopped the president .

The president stopped the banker .