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]: My vision adjusted to the darkness , and I found myself staring at two rather large , muscled legs clad in white sandal bottoms .
[A]: Changed


[Q]: " Okay , maybe a thousand , " the man said quickly , backtracking .
[A]: Original


[Q]: Did the breakdown of the helix cause your body to conjure ?
[A]:
Changed