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 senators contacted the banker .
answer:
The banker contacted the senators .


question:
The secretaries mentioned the athletes .
answer:
The athletes mentioned the secretaries .


question:
The banker introduced the tourist .
answer:

The tourist introduced the banker .