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: " They ain 't peanuts , " Amy whispered angrily , hoping that Rosy would not understand if she used English .
Example Output: Changed

Example Input: " I 'm gon na grab some grub and do some socializing .
Example Output: Original

Example Input: " They 're beautiful , " I said , petting them one last time before standing up .
Example Output:
Original