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.

Charles was worried because when you were summoned by the Council , the algorithm gave you only a location and a half-hour window of time .
Original

A few nasty comments burrowed into my shortcomings as I walked out of the tunnel and into the night air .
Changed

He takes a deep breath and prepares to deliver his blow to Mr. Harrison .

Original