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]: After the delirium took it for many days , so many nights , even factors could calm her down .
[EX A]: Changed

[EX Q]: He looked dusty and ordinary in comparison beside Sam 's black flop of hair and golden eyes .
[EX A]: Original

[EX Q]: She stopped a male on the street and he authorized her .
[EX A]:
Changed