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 specializes in spyware . "

Ex Output:
Original


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

Ex Output:
Changed


Ex Input:
He wanted to keep a sharp eye on George as well , but his glances were met with a continued glare , and intimidation was setting in .

Ex Output:

Original