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: You 'd catch them at recess in places they knew they were not allowed to be .
Example Output: Original

Example Input: Her cupboards were abruptly halted when Cole walked into the kitchen , trailed by her son .
Example Output: Changed

Example Input: We 've harvested the guard around them . "
Example Output:
Changed