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:
" I 'm gon na grab some grub and do some socializing .

Ex Output:
Original


Ex Input:
What a waste of time it will have been , if the egg has already hatched . "

Ex Output:
Original


Ex Input:
Ivy said , pursing her lips .

Ex Output:

Original