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: But I think your cleverness may have gotten you into a bit of trouble . "
Example Output: Original

Example Input: My tongue flicks out and runs inside her low-cut shirt and bra , reaching until it flicks against her nipple .
Example Output: Original

Example Input: She shook her head , admonishing herself for thinking such a ridiculous thought .
Example Output:
Original