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 thick sweet scent of illumination spilled from the half-open door into the foyer .
Changed

Alan stepped toward Marcus , the barrel of the AR-15 digging into his cassock .
Changed

The whole operation is protected with corrupt officials on their comm .

Changed