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.

Example Input: Slade waited for the long tirade with a bite of enjoyment he rarely experienced out of the courtroom .
Example Output: Original

Example Input: With a waved arm , he ensures that I should step towards one of the doors towards the back of the room .
Example Output: Changed

Example Input: She poured herself a glass of water , gulped down a pill , then slipped the prescription into her pocket and took one last look around .
Example Output:
Original