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:
Shoes , T-shirts , tight skirt , silk blouse , all in black .

Ex Output:
Changed


Ex Input:
She had been trying to narrow down a new definition , mathematically stated , of quantum probability .

Ex Output:
Original


Ex Input:
The maid dipped a quick curtsy and stepped out of the way .

Ex Output:

Original