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.

[EX Q]: A slight smile appeared as he moved around the bag , targeting different sides with different hand techniques .
[EX A]: Original

[EX Q]: Fortunately , Paul 's fridge was full of fresh lettuce , tomatoes , coolers , and mushrooms .
[EX A]: Changed

[EX Q]: The cabal has both letters and numbers .
[EX A]:
Changed