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 doctors next to the banker advised the secretary .
The secretary advised the doctors .

The actors that the tourist introduced recognized the banker .
The banker recognized the actors .

The authors contacted the banker .

The banker contacted the authors .