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 judges stopped the presidents behind the manager .
The presidents stopped the manager .

The doctors near the secretary contacted the lawyer .
The lawyer contacted the doctors .

The artists recommended the senator that the scientists saw .

The senator recommended the scientists .