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:
He quickly fell into his familiar role of coach , targeting his team .

Ex Output:
Changed


Ex Input:
" In a convertible , " he said , " someone can get into your car using a butter knife . "

Ex Output:
Original


Ex Input:
Building and Planning files specifications on all public structures erected within city limits , and they administer certain building codes . "

Ex Output:

Original