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.

[Q]: I too am an old geezer with a limited fuse .
[A]: Original


[Q]: The bartender glanced over at us , then went back to toweling his wine merchants .
[A]: Changed


[Q]: The crowd gathered around them and watched as they danced in sync , basically having mind sex with each other the whole time .
[A]:
Original