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]: We flushed everything else with hydrogen gas and heavily chlorinated water . "
[A]: Changed


[Q]: Healers were once regarded as the hands of the pagan gods here on Earth , the blessed few , the takers of suffering .
[A]: Original


[Q]: Though it was injured it wasn 't hindered much as it switched directions and honed in on my brother and Bret .
[A]:
Original