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: " Let 's mimic a truce .

SOLUTION: Changed

PROBLEM: When I get to the top , she 's standing in front of the small side window , an awed smile brightening her injured face .

SOLUTION: Original

PROBLEM: She flicks a frustrated breath , but she 's trembling in my arms .

SOLUTION:
Changed