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.

Q: The toilet flushed , and shopkeeper turned back to watch Oksana emerge from the bathroom .

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

A: Changed
****
Q: continued the grandmother , in a dialect that had not been in common usage for several centuries .

A:
Original
****