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 was it you worked on during your doughnut ? '
Example Output: Changed

Example Input: Their religion forbade a lot of industrial processes , but they had no objections to benefiting once the damage had been done by someone else .
Example Output: Original

Example Input: But then the darkness assuring the tombstone terrain limited her vision .
Example Output:
Changed