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]: " What about your sciences ? "
[EX A]: Changed

[EX Q]: I opened my eyes and saw the woman retching onto the floor .
[EX A]: Changed

[EX Q]: Chris nodded , seeing in one hand the man waddled a plate piled high with assorted donuts and pastry .
[EX A]:
Changed