You will be given a definition of a task first, then some input of the task.
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.

Vimes walked through it all , as the squad dragged or rolled slumbering trolls into neat lines to await the wagons .
Output:
Original