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: He specializes in spyware . "
Example Output: Original

Example Input: She wasn 't blowing her assigned task on a technicality .
Example Output: Original

Example Input: In such circumstances , she was a brilliant ray of sunshine , providing hope to the forlorn .
Example Output:
Original