student asking question

I cannot understand this fragment grammatically. How come "empty" comes after "floor"?

teacher

Réponse d’un locuteur natif

Rebecca

Between "floor" and "empty", "that is" is implied. You can think of this sentence as, "At Kaiser Medical Center in Oakland, there's an entire floor that is empty."

Questions et réponses populaires

12/22

Complétez l’expression avec un quiz !

Au Kaiser Medical Center à Oakland, il y a un étage entier vide.