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: All week he 'd wormed his will not to go near the girl .
Example Output: Changed

Example Input: " I clean lavatory in breastplate . "
Example Output: Changed

Example Input: I was handcuffed -- the links having been looped around the pipe of an incomplete sprinkler system installed overhead .
Example Output:
Original