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: Noah kept his hold on Claire as he waited for Gwen to drop another binder .

Output: Changed


Input: Consider Input: Humans outnumber us , Sali , and it confuses things .

Output: Original


Input: Consider Input: An advance on his grenades was what he wanted so he had said .


Output: Changed