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: I tried to invent the group away from physical violence .

Output: Changed


Input: Consider Input: ' We 're at the end of the wharf , father .

Output: Original


Input: Consider Input: Joseph looked sympathetic , like he could see the two sides , his brows pulling together in consternation .


Output: Original