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]: There is an odd undertone of fear in her voice , which piques my curiosity and concern .
[A]: Original


[Q]: Much better , than the endless trials and receivers that left those who had been wronged , waiting and waiting , for their day in court .
[A]: Changed


[Q]: Allen , stop that jackass or put your head over the side , " Keynes said , somewhere behind his back .
[A]:
Changed