 They have to have large hallways. They have to have elevators. They have to use a lot of steel and concrete to build them. And they have big lobbies. And all of these things increase the cost so that instead of building, you know, a 20,000 square foot building that's all livable, they build a 20,000 square foot building and about 40% of it is shared common areas, which means only 60% of it is livable.