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.

He quickly fell into his familiar role of coach , targeting his team .
Changed

" Sir , floods are up .
Changed

He would be an idiot to sue the danger of the sudden standoff .

Changed