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: " If we are stopped by American police forces , just pay them in cigarettes and whisky . "

SOLUTION: Original

PROBLEM: The toilet flushed , and shopkeeper turned back to watch Oksana emerge from the bathroom .

SOLUTION: Changed

PROBLEM: As soon as Don took off for his weekly errand run , the office shrunk in the kitchen .

SOLUTION:
Changed