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.

Ex Input:
With a waved arm , he ensures that I should step towards one of the doors towards the back of the room .

Ex Output:
Changed


Ex Input:
" Hurry up , " one of her friends called , " we 'll be late if you keep dawdling . "

Ex Output:
Original


Ex Input:
She didn 't think shape-shifters could change into fog , could they ?

Ex Output:

Original