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.

Input: Consider Input: He could not answer those questions without resenting the sudden and final end to his career as a law enforcement officer .

Output: Changed


Input: Consider Input: That 's what life 's all about , isn 't it , luv ? "

Output: Original


Input: Consider Input: The revenue they 'd picked out was classic and elegant , double-breasted and black .


Output: Changed