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: His thick , muscular arms were accentuated by a sleeveless top .
Example Output: Original

Example Input: Though my hands were trembling , I lifted my gaze and met his without flinching .
Example Output: Original

Example Input: He turned and addressed the man with the pixie face .
Example Output:
Changed