 But there would be other subjects like English literature, you know, algebra, basic biology, where they don't change much over decades. And if we owned that curriculum, and in fact if we were subject to sort of, you know, try it out in Oklahoma now, let everybody else use it, free of charge, anywhere in America, pick it up online, you don't have the printing costs, you don't have the copyright costs, and the public then owns the public curriculum.