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: I am not preaching , and Heaven knows I do not pretend to be better than anyone else .
Example Output: Original

Example Input: Like in our own little payback . "
Example Output: Changed

Example Input: These are people like yourself who don 't quite qualify for Hell , and therefore , they don 't qualify to live in the Inner Circle .
Example Output:
Original