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: They were close to the surface of the tendon , and getting closer .
Example Output: Changed

Example Input: " That 's a horrible metaphor .
Example Output: Original

Example Input: They criticize you of responsibility .
Example Output:
Changed