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]: Andrew ordered a beer , Megan ordered a margarita , and Kelly ordered her third glass .
[EX A]: Original

[EX Q]: He could not answer those questions without resenting the sudden and final end to his career as a law enforcement officer .
[EX A]: Changed

[EX Q]: He 'd wondered why there were only three when there had been four spots in the keyhole for the vehicles .
[EX A]:
Changed