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.

Ex Input:
Where there is good , there must be evil and every light shines brighter when surrounded by darkness .

Ex Output:
Original


Ex Input:
May I return to my harmless query ? "

Ex Output:
Changed


Ex Input:
Everything he said was a midwife for some stupid magazine article .

Ex Output:

Changed