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:
" It sounds like you are very anxious to grow up , " Jason observes .

Ex Output:
Original


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

Ex Output:
Original


Ex Input:
A thinness or transparency to the object .

Ex Output:

Original