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: He returned every lick , every nip .

Output: Original


Input: Consider Input: Policy said Rohit and I had to tell a joke to each other to make the potential intern feel at home .

Output: Original


Input: Consider Input: " Hide the cover . "


Output: Changed