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: And besides that - father or not - he took care of you , nurtured and brought you up , for years .
Example Output: Original

Example Input: " Look , Ares , " the pediatrician said .
Example Output: Changed

Example Input: And certainly not if one half of that potential romantic ballad was notorious Brodie Short , the villain of last season 's World Races .
Example Output:
Changed