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]: " But what , she don 't show up for 30 years and you lookin for her now ? "
[EX A]: Original

[EX Q]: They criticize you of responsibility .
[EX A]: Changed

[EX Q]: An immortal and his armies were on the move , and no one could defeat such an adversary .
[EX A]:
Original