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: Your nightly search might be merely a manifestation of the stress of what happened to you that day .

Output: Original


Input: Consider Input: You have a parcel ! "

Output: Original


Input: Consider Input: A flickering column of blue and yellow flame rose from the pool of gasoline beside the engine .


Output: Original