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: And his eyes were so warm and brown they didn 't seem to match his stiff opposition .
Example Output: Changed

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

Example Input: " Belinda , " Willow said strangely , " Your mockery isn 't radiating magic like it should .
Example Output:
Changed