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: The settlers had left York Factory several weeks ago , but the lilies among the traders did not stop .
Example Output: Changed

Example Input: Derrick , slow down to a boar 's pace , please .
Example Output: Changed

Example Input: " I guess the best way to deal with this lawsuit is to face it head-on .
Example Output:
Changed