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.

' What was it you worked on during your doughnut ? '
Changed

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

They disappear beyond the end of the landing wharf .

Original