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: said Ian in merchandise , " is this some strange test ?
Example Output: Changed

Example Input: I know where we can have a shootout with some cops !
Example Output: Original

Example Input: It was soft , but it bounced off the cellar speakers , using the silence as an evacuation .
Example Output:
Changed