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.
--------
Question: ' I 'm saying nothing that will grieve me . '

Answer: Changed


Question: " I see , will you be shipping yourself out of Cuba using the new procedure ? "

Answer: Original


Question: The surface of the car park was a cold hard tack .

Answer:
Changed