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: She would never be a normal printer .
Example Output: Changed

Example Input: Caroline feared she would arrive back in Chicago with neither a father nor a telepath .
Example Output: Changed

Example Input: It was a choice ; therefore they had the liberty to choose . "
Example Output:
Original