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.

Except for the slices on her wrists and the bloodstains , her body was flawless .
Original

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

Their commercial locator beacons or transponder impulses are being kept active by our satellites although air traffic control worldwide is already dead .

Original