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.

The singsong voice froze Holly in her tracks .
Changed

You get seriously unhinged . "
Changed

Somehow , Mr. Carpenter , I think the problem isn 't courtship .

Original