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.

It was to be the icon of the Easter Square Incident .
Original

Where there is good , there must be evil and every light shines brighter when surrounded by darkness .
Original

Step one is to loot Rover 1 's battery and drape it in Rover 2 .

Changed