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: " Good thing I 've got a trump card . "
Example Output: Original

Example Input: said Neville , putting a protective hand over his leisure .
Example Output: Changed

Example Input: We were suddenly spinning as we misted through the blackness of time at incredible speed before everything halted with an abrupt jolt .
Example Output:
Changed