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]: Rosencrantz and Guildenstern have their own fates but I must be there for the last act , the last scene .
[A]: Original


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


[Q]: Because that would be the ultimate showdown .
[A]:
Changed