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: My vision adjusted to the darkness , and I found myself staring at two rather large , muscled legs clad in white sandal bottoms .
Example Output: Changed

Example Input: " What exactly is a human golem ? "
Example Output: Original

Example Input: They relayed the monorail tunnels .
Example Output:
Changed