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: Josh leveraged the winners of the chair .
Example Output: Changed

Example Input: " We need to do our human testing , don 't want to have any more deliveries by waiting for vaccination of a test subject .
Example Output: Changed

Example Input: It was extremely rare to begin with , but not only that , it wasn 't the right time or place to be occurring .
Example Output:
Original