instruction:
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.
question:
The presidents contacted the athletes .
answer:
The athletes contacted the presidents .


question:
The doctors contacted the authors .
answer:
The authors contacted the doctors .


question:
The manager that the actors called mentioned the senators .
answer:

The senators mentioned the manager .