TASK DEFINITION: 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.
PROBLEM: Derrick , slow down to a boar 's pace , please .

SOLUTION: Changed

PROBLEM: Jill had been right that skunk would get me farther than perfection .

SOLUTION: Changed

PROBLEM: He spits the protective guard over my ear and takes a step back .

SOLUTION:
Changed