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 'd had no word of Marianne since their abduction ... the lack of knowledge gnawed at her driving her crazy with worry . .

SOLUTION: Original

PROBLEM: An advance on his grenades was what he wanted so he had said .

SOLUTION: Changed

PROBLEM: Chapter 18 I finally managed to stop my mind from envisaging a future rebellion , and began to minimize my surroundings .

SOLUTION:
Changed