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]: I am not preaching , and Heaven knows I do not pretend to be better than anyone else .
[A]: Original


[Q]: Shira is supposed to take a last look at the cottages she was interested in .
[A]: Original


[Q]: Alex went back to the barrack room to find that instead of being taunted by his friends , he was quite a hero .
[A]:
Original