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: ' You 're captives ? '

SOLUTION: Original

PROBLEM: Lettie looked up from the pastries .

SOLUTION: Original

PROBLEM: Several burning candles were set in nooks around the walls , and their light revealed an apparently deserted cavern .

SOLUTION:
Original