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]: " You don 't mean the one we used to picnic underneath when the children were but motels . "
[EX A]: Changed

[EX Q]: I 'd used it to illuminate all manner of moans and screams when ... Noah .
[EX A]: Changed

[EX Q]: Didn , t make sense , but the fireballs were gone .
[EX A]:
Changed