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:
Reluctantly I unwrapped mine and stared at the first cheeseburger I 'd been allowed in months .

Ex Output:
Original


Ex Input:
The thick sweet scent of illumination spilled from the half-open door into the foyer .

Ex Output:
Changed


Ex Input:
Theirs wasn 't a dent .

Ex Output:

Changed