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.

[EX Q]: He was camouflaged so well , Neil hardly noticed him .
[EX A]: Original

[EX Q]: ' You 're captives ? '
[EX A]: Original

[EX Q]: Vena watched as the Valkyries , squabbling among themselves , made their way back to the mountain .
[EX A]:
Original