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

Example Input: Mr. Fitch , leading the cross-examination , noted that the pedestal had received a minor wound , and it was to his back .
Example Output: Changed

Example Input: They changed their facial appearances through grooming and makeup , and worked on very rough verbal accents that were believable , but harsh .
Example Output:
Original