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: " Okay , maybe a thousand , " the man said quickly , backtracking .

Output: Original


Input: Consider Input: Corinne had her eyes closed and she looked serene , her long lashes two thick , dark crescents on her face .

Output: Original


Input: Consider Input: I just received his smock , didn 't I ? "


Output: Changed