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: " Sorry , still tracing all the different cultures the money is making .
Example Output: Changed

Example Input: Talk with him about a merger .
Example Output: Original

Example Input: " I didn 't realize this was an intervention . "
Example Output:
Original