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]: Avery slowly began to move for the door allowing the echoing of the hall to rev and disguise his exact location , or so he hoped .
[A]: Changed


[Q]: I wanted to write a story that distilled love down to its essence .
[A]: Original


[Q]: His arms flashing out before him felt like forelegs , and his speed astonished him .
[A]:
Original