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:
' Hold quite still or I 'll gnaw you ! '

Ex Output:
Original


Ex Input:
She 'd gotten out of last period to take pictures and document the coming event for the yearbook .

Ex Output:
Original


Ex Input:
And if Old Ben had seen something , why had they called off the investigation before they had interviewed him ?

Ex Output:

Original