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 could not answer those questions without resenting the sudden and final end to his career as a law enforcement officer .

Ex Output:
Changed


Ex Input:
' You 're captives ? '

Ex Output:
Original


Ex Input:
They must have made it since the next time they goaded the rock was gone .

Ex Output:

Changed