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 light seemed to come from the diamonds , as if an invasion of blue fireflies had been frozen in midair .
[A]: Original


[Q]: That 's what life 's all about , isn 't it , luv ? "
[A]: Original


[Q]: While Jenna and Nicko spent hours outside skating and making ice slides around the Mott , Boy 412 stayed indoors .
[A]:
Original