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: The realisation gives her host thanks , promising to return and finish her work with the roof .

Output: Changed


Input: Consider Input: I tried to invent the group away from physical violence .

Output: Changed


Input: Consider Input: " And do I get speared by these vagrant arrows ? "


Output: Original