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]: An advance on his grenades was what he wanted so he had said .
[EX A]: Changed

[EX Q]: " Frazier , why in the world would those people come to the macho ?
[EX A]: Changed

[EX Q]: A long time ago Jake and a bunch of other guys from the football team actually went to my tenth birthday party and some of the salads .
[EX A]:
Changed