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: That wasn 't to say Rose wasn 't a sucker for interrogations .
Example Output: Changed

Example Input: I already got the wood and nails for them from a carpenter .
Example Output: Original

Example Input: I 'll contact the realtor tomorrow and we 'll go look at the apartment downstairs . "
Example Output:
Original