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]: Shoes , T-shirts , tight skirt , silk blouse , all in black .
[EX A]: Changed

[EX Q]: I know where we can have a shootout with some cops !
[EX A]: Original

[EX Q]: Your people don 't have that kind of firepower .
[EX A]:
Original