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: Her heart began to pound as she diverted the dense black writing around it .
Example Output: Changed

Example Input: Her first thought , incongruous but overpowering , was to grieve him so she could draw him later .
Example Output: Changed

Example Input: " The embassy did a thorough background check on me . "
Example Output:
Original