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: I really shouldn 't have provoked her like that .

Output: Original


Input: Consider Input: The space felt less protective than it was imprisoning .

Output: Original


Input: Consider Input: He let out a loud sigh , but she thought he was about to answer , when below them , a nicotine began .


Output: Changed