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: 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: Like a match thrown to gasoline , her body sparked alive .
Example Output: Original

Example Input: Then she touched the small formality in the base .
Example Output:
Changed