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.

Ex Input:
Now , more then ever , she was determined not to shirk her class work .

Ex Output:
Original


Ex Input:
An advance on his grenades was what he wanted so he had said .

Ex Output:
Changed


Ex Input:
One of the thorns caught in my pink coat , and I pulled it out with difficulty .

Ex Output:

Original