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 doctors who called the senators admired the athletes .
answer:
The senators admired the doctors .


question:
The president called the secretary that helped the scientist .
answer:
The scientist called the president .


question:
The secretary stopped the tourists who believed the managers .
answer:

The tourists stopped the secretary .