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]: She slouched and rubbed the bridge of her nose .
[A]: Original


[Q]: I sigh with thriller .
[A]: Changed


[Q]: If they had been caught in the firestorm , they would have been reduced to ash and he would never find them .
[A]:
Original