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: Corinne had her eyes closed and she looked serene , her long lashes two thick , dark crescents on her face .

SOLUTION: Original

PROBLEM: Then bodies began to sympathize .

SOLUTION: Changed

PROBLEM: Heat unfurled back and forth between them , leaving each of them struggling for air .

SOLUTION:
Changed