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.

Example Input: And everything I have on this boat is covered with soot . "
Example Output: Original

Example Input: It was an old heavy building , built of devastation and stone , that looked like it had grown slowly up from the forest floor .
Example Output: Changed

Example Input: The wonderful harpsichord and a gazebo stood nearby .
Example Output:
Changed