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: What good reason do you have for questioning my two guest 's ultimatum ? "
Example Output: Changed

Example Input: I resigned , and later I turned in a report to the FDA with all this documentation . "
Example Output: Original

Example Input: However , she knew my weakness too and mentioning God was like cracking a walnut with a tyrant .
Example Output:
Changed