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: Eva Roberts said that it would be extremely helpful if she could find any dampness .
Example Output: Changed

Example Input: She sat at the workstation and entered her co-workers on the screen .
Example Output: Changed

Example Input: The room was erupting in chaos .
Example Output:
Original