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: The spire of white and crystal crumbled to the ground , casting clouds of choking dust in every direction .
Example Output: Original

Example Input: She 'd gotten out of last period to take pictures and document the coming event for the yearbook .
Example Output: Original

Example Input: His thick , solid bone structure was evident in his massive hands and heaving underfoot .
Example Output:
Changed