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.

" They leave the barrows and wagons in courtyards and side streets , covered by a tarp against the rain . "
Original

When they crossed in front of the stump they raised their paddles into the air and shouted , " We 're the champs !
Original

Hector helped himself to a cracker with a swirled topping .

Original