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: That 's what life 's all about , isn 't it , luv ? "

SOLUTION: Original

PROBLEM: I opened my eyes and saw the woman retching onto the floor .

SOLUTION: Changed

PROBLEM: " Fuck , " he muttered as he cupped me carefully , his touch rousing .

SOLUTION:
Changed