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: Eventually , I managed to block out everything in my head , and loud music , governing bodies , and thumping bass were all I cared about .

SOLUTION: Changed

PROBLEM: " Almost everything is paid for with vouchers or coupons that you buy from a guard . "

SOLUTION: Original

PROBLEM: He landed on his butt in the grass and began sliding down the ditch 's steep embankment .

SOLUTION:
Original