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:
Her heart began to pound as she diverted the dense black writing around it .

Ex Output:
Changed


Ex Input:
He returned every lick , every nip .

Ex Output:
Original


Ex Input:
* * * * Seth kept glancing over his shoulder at the buffalo they were leading along the path .

Ex Output:

Original