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 who encouraged the scientists introduced the actor .
The actor introduced the artists .

The bankers who recommended the president supported the scientists .
The scientists supported the president .

The secretaries recommended the senator .

The senator recommended the secretaries .