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: " But I didn 't bring the taverns . "
Example Output: Changed

Example Input: Collecting secret information , surveillance , unarmed combat , shooting , blackmail , sabotage , contractor , jungle survival -- bah !
Example Output: Changed

Example Input: ' I think we shall leave him where he is , it 's a dummy , made to draw activity away from us . '
Example Output:
Original