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: They were hard to read compared with digital notebooks .

SOLUTION: Changed

PROBLEM: A fog bank began to seep onto the street , hovering a foot above the ground .

SOLUTION: Original

PROBLEM: Simple things about her also condemned him , such as the way her lips pursed and tensed slightly while she calculated change .

SOLUTION:
Changed