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: He never went commando , hiking , climbing , or anything like that in the mountains .
Example Output: Changed

Example Input: I don 't like deceiving her but it 's safer that way . '
Example Output: Original

Example Input: How long since she 'd danced about with such exuberance ?
Example Output:
Original