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:
My body throbs with pain all over - an aching pull deep in my calf ; a sharper twinge in my right hip .

Ex Output:
Original


Ex Input:
Sure ... why unite it .

Ex Output:
Changed


Ex Input:
The USA , the land of the free and home of the brave , had been hijacked by perverted self-serving interpretations of the Bill of Rights .

Ex Output:

Original