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.

She had been trying to narrow down a new definition , mathematically stated , of quantum probability .
Original

I 'd really appreciate it if you 'd tell me what your connection is to Marc Dumont and why you 're here pestering me about my family .
Changed

Her voice trembled , and in her mind he could feel the skittering of fear .

Original