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.

That is all IT is ... beat the competition ... ' ' Naturally ... by co-operating in mutual enhancement ? '
Changed

Shoes , T-shirts , tight skirt , silk blouse , all in black .
Changed

A couple used to be senators but now they were all rich plumes of the emperor and handed ancient but useless titles .

Changed