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: The jury was sequestered , and the longer the trial dragged on , the more blame the dorms would heap upon the party now calling the witnesses .
Example Output: Changed

Example Input: His Western boots were retained to a shine , and two pistols hung low at his side .
Example Output: Changed

Example Input: He spit out a mouthful of red saliva and began trotting along the pathway .
Example Output:
Changed