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.

Example Input: From a crack of light around a far door he heard shouts , stamping feet and bags or faces getting pummelled .
Example Output: Original

Example Input: The darkness is suffocating , as is the heat that increases with every step that takes us further and further underground .
Example Output: Original

Example Input: " In general we think monkeys have improved , thanks often to personal connections , lifelong friendships , and sometimes just a smile at the right time .
Example Output:
Changed