instruction:
In this task, you are given a sentence. You must judge whether a single noun or verb has been replaced with another word with the same part of speech. The inversion would result in the sentence sounding unnatural, So unnatural sentences will be considered changed. Label the instances as "Original" or "Changed" based on your judgment.
question:
He used to spend hours perfecting the old books . "
answer:
Changed


question:
He had to be proactive , because being reactive would only end up in chaos , arrests , and more shit than he wanted to deal with .
answer:
Original


question:
After a few steps , she stopped , used him as a prop and slipped off her shoes .
answer:

Original