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:
" He 's made out of old iron and horseshoe nails . "

Ex Output:
Original


Ex Input:
It was on a swivel base , operated by a crank at the left-hand side .

Ex Output:
Original


Ex Input:
Her blond hair was scraped tightly to her scalp and tied up in a donut on the back of her head .

Ex Output:

Original