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 Input:
I regret confronting this burden on one so young , but you are the most likely to succeed .

Ex Output:
Changed


Ex Input:
I don 't need that kind of complication in my life . "

Ex Output:
Original


Ex Input:
LHC was storing the depths of human capabilities , trying to reach the bottom .

Ex Output:

Changed