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 artists thanked the president .
answer:
The president thanked the artists .


question:
The doctors stopped the presidents next to the lawyers .
answer:
The presidents stopped the lawyers .


question:
The managers in front of the athletes introduced the senators .
answer:

The senators introduced the athletes .


