TASK DEFINITION: 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.
PROBLEM: And my brethren , " again with the sweep of his arm , " wishing simply to be free to be vampires . "

SOLUTION: Original

PROBLEM: He used to spend hours perfecting the old books . "

SOLUTION: Changed

PROBLEM: The moment the mage took down the safeguards , the jaguar would attack .

SOLUTION:
Original