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 's why I 'm barreling through the files , trying to figure out what 's been overlooked . "

A: Changed
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Q: " It sounds like you are very anxious to grow up , " Jason observes .

A: Original
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Q: And not just any kind of gape , but a " bug-eyed , mouth hanging open to catch flies " kind of barter .

A:
Changed
****