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:
" The heads of the Arab states and the Majlis have authorized me to make you an offer . "

Ex Output:
Original


Ex Input:
Andrew ordered a beer , Megan ordered a margarita , and Kelly ordered her third glass .

Ex Output:
Original


Ex Input:
Avery slowly began to move for the door allowing the echoing of the hall to rev and disguise his exact location , or so he hoped .

Ex Output:

Changed