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]: There is an odd undertone of fear in her voice , which piques my curiosity and concern .
[A]: Original


[Q]: She spent most of her days commanding a scout ship on the soles of Collective territory , gathering intelligence .
[A]: Changed


[Q]: As the spasms rocked her body , he erupted , driving upward in an instinctive impulse to plant his seed deep in her womb .
[A]:
Original