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]: 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]: And besides that - father or not - he took care of you , nurtured and brought you up , for years .
[A]: Original


[Q]: He said , " You know the guy that mugged you ?
[A]:
Original