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: The Big Man pointed to a couple elves who 'd spent most of the trip napping in the back of the rainstorm .

Output: Changed


Input: Consider Input: He specializes in spyware . "

Output: Original


Input: Consider Input: " That 's why we spent so much time watching the polar bear cub . "


Output: Original