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: It was titled : Riddle of the Pink Pyjamas The writing was hard to make out .

Output: Original


Input: Consider Input: A raccoon in a mask ? "

Output: Original


Input: Consider Input: A small flock of gray gulls hung motionless , gliding into the breeze .


Output: Original