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: If anyone was talking in riddles , it was Foley .
Example Output: Original

Example Input: Maybe she 'd dubbed herself on his heart when she was born .
Example Output: Changed

Example Input: He clenched his teeth behind his lips , trying to illuminate the arousal that flushed through his veins .
Example Output:
Changed