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.

It was titled : Riddle of the Pink Pyjamas The writing was hard to make out .
Original

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

" I wasn 't thinking and grabbed those steel hammers .

Changed