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 've roped them all in and they can 't get away ! "

Ex Output:
Original


Ex Input:
I grabbed my weapons , sheathed them , and reverted back to my normal form .

Ex Output:
Original


Ex Input:
I 'd used it to illuminate all manner of moans and screams when ... Noah .

Ex Output:

Changed