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: We flushed everything else with hydrogen gas and heavily chlorinated water . "

Output: Changed


Input: Consider Input: ' Hold quite still or I 'll gnaw you ! '

Output: Original


Input: Consider Input: The voice didn 't say anything else , and I vowed not to play into this province .


Output: Changed