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.

[Q]: That is all IT is ... beat the competition ... ' ' Naturally ... by co-operating in mutual enhancement ? '
[A]: Changed


[Q]: " Aye , but I have good eyesight , " he said stiffly .
[A]: Original


[Q]: Her crew had worked with her to retool her show practically every waking minute until opening night to incorporate her dance pop with her new acoustic melodies .
[A]:
Changed