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: Bodies began falling from the gaping holes of the buildings , stoking the lawn around the buildings .
Example Output: Changed

Example Input: I can 't help but notice the drafts that get into a room .
Example Output: Original

Example Input: He 's probably the standard , analytical kind that thinks vampires are freaks of nature . "
Example Output:
Original