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.

[EX Q]: I pushed through the double doors to the atrium in time to witness Sofie deliver a vicious slap to Mortimer 's cheek .
[EX A]: Original

[EX Q]: " Oh , you 've met her applications ? "
[EX A]: Changed

[EX Q]: He needs a scapegoat .
[EX A]:
Original