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]: What did they mean by repercussions from the head injury ?
[A]: Original


[Q]: " And when Anna Marie finds out things in the carnage from her job , have you ever heard her repeat them ? "
[A]: Changed


[Q]: You 've certainly learnt a lesson , the submarine will be very interested in you . "
[A]:
Changed