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.

Input: Consider Input: And of course being out in public made it that much more difficult to avoid catastrophe .

Output: Original


Input: Consider Input: Avery slowly began to move for the door allowing the echoing of the hall to rev and disguise his exact location , or so he hoped .

Output: Changed


Input: Consider Input: " I don 't think it would work on vampires because we are already dead and demons do not have human physiology .


Output: Original