Well what type of molecule is this? It's a fructose that contains a phosphate. So phosphoructose kinase, phosphorylates this process and adds that phosphoryl group onto this oxygen. And now we have asymmetrical molecule. And once the cleavage takes place in stage two, that will ultimately allow us to produce two, three carbon molecules. And notice this stage one, because we're essentially investing to prepare that molecule for cleavage, we actually use energy molecules, we use one two ATP molecules in stage one.