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.

And of course being out in public made it that much more difficult to avoid catastrophe .
Original

" Yes sir , " one of the soldiers replied , nearly a dozen in total -- each seated in front of a workstation .
Original

I turned the paper to the side as I had seen my mother do countless times as she wrote out invitations .

Original