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 don 't need that kind of complication in my life . "
Example Output: Original

Example Input: The mosaic depicted an enormous battle of primates being waged in tall trees .
Example Output: Original

Example Input: She would certainly enhance the rather disappointing selection of humans he was currently examining .
Example Output:
Original