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:
Then he walked rapidly to the nightstand and snatched up his wristwatch .

Ex Output:
Original


Ex Input:
Alan stepped toward Marcus , the barrel of the AR-15 digging into his cassock .

Ex Output:
Changed


Ex Input:
In a few moments time the hands aligned to ten past two .

Ex Output:

Original