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.

[EX Q]: It was on a swivel base , operated by a crank at the left-hand side .
[EX A]: Original

[EX Q]: The anger was still there , but it was tempered by the fact that she had come out of it unharmed .
[EX A]: Original

[EX Q]: ' To my pestering you ? '
[EX A]:
Changed