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.

I tried to invent the group away from physical violence .
Changed

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

Unless it was mid-morning , when they all seemed determined to drown out the sound of each other 's mower .

Original