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: The first song she 'd put on was her present favorite , Pink 's latest , but it was near the end of the playlist .
Example Output: Original

Example Input: She had been trying to narrow down a new definition , mathematically stated , of quantum probability .
Example Output: Original

Example Input: The splinters that used to be my heart broke into more splinters .
Example Output:
Original