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: " If I tell you what 's bothering me , will you rev up ? "

Output: Changed


Input: Consider Input: What good reason do you have for questioning my two guest 's ultimatum ? "

Output: Changed


Input: Consider Input: I had to ride the wave and hope I didn 't crash into the reef and drown .


Output: Original