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]: I wanted to write a story that distilled love down to its essence .
[EX A]: Original

[EX Q]: They were hard to read compared with digital notebooks .
[EX A]: Changed

[EX Q]: The pain had misted his mind to the point that nothing else mattered .
[EX A]:
Changed