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]: The mosaic depicted an enormous battle of primates being waged in tall trees .
[A]: Original


[Q]: " Miss , " the stewardess said , leaning into her chair .
[A]: Original


[Q]: Later that morning , Timothy 's peering into a microscope in the lab , when Pierre walks up to him .
[A]:
Original