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:
But do not stand in the way of my classmate .

Ex Output:
Changed


Ex Input:
She has done our family proud , " stated the ambassador .

Ex Output:

Original