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: " I clean lavatory in breastplate . "
Example Output: Changed

Example Input: Humiliation threatened , so I quickly gulped the rest of my drink and reconsidered the bartender .
Example Output: Original

Example Input: She laughed at my expression and I joined her in her leisure .
Example Output:
Changed