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:
A raccoon in a mask ? "

Ex Output:
Original


Ex Input:
Finally in the early hours of the morning when floods came we were able to take the trench .

Ex Output:
Changed


Ex Input:
That creature is supposed to be Bob , but Bob has singled out in a dream so far away nobody seems to pull him out .

Ex Output:

Changed