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:
But the alternative is a whole can of worms I flinch at the thought of opening .

Ex Output:
Original


Ex Input:
" You know , I could have you flogged for insubordination and being a right prat . "

Ex Output:
Original


Ex Input:
" There was nothing within the corridor that would cause an explosion of this lawsuit . "

Ex Output:

Changed