Sentence:As was standard practice at the museum on that day of the week, only maintenance workers, cleaning staff, curators, and a few other employees roamed the cavernous [e1]halls[/e1] of the [e2]building[/e2] that was once the home of France's kings but for centuries had been devoted to housing the nation's art treasures.
 e1: halls. 
 e2 : building.
Answer: Component-Whole(e1,e2)