Now, the reason we have to form the fructose we'll talk about in just a moment. But the final step in stage one is to take that fructose, fructose six phosphate and transform it into fructose one six bisphosphate. And once we form the fructose one six bisphosphate, that molecule is reactive enough to go on to stage two. And this is what I'd like to focus on in this lecture. So let's begin by describing what the general goal is of stage two. So in stage two, the entire point is to take that highly reactive fructose one six bits phosphate molecule that was formed in stage one and to break it down and form two identical three carbon molecules we call glyceroaldehyde three phosphates or gap gap molecules.