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: Now , more then ever , she was determined not to shirk her class work .
Example Output: Original

Example Input: Moses Todd asks James while he 's toppling the rope .
Example Output: Changed

Example Input: Tonight , you stay in one of the labs .
Example Output:
Changed