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: May I return to my harmless query ? "

Output: Changed


Input: Consider Input: I know where we can have a shootout with some cops !

Output: Original


Input: Consider Input: We started the company to keep soldiers safer , but it 's also being used by police cruisers and private security details . "


Output: Changed