So we have to use the DNA template molecule to basically figure out which base is complementary to this base. And only then will this form a strong enough interaction for this to actually remain in place. And when that takes place, the RNA polymerase molecules, as well as other proteins involved and other enzymes involved, essentially catalyze the nucleophilic addition of this phosphodia bond. So we have these electrons attacking this phosphate and that kicks off this bond. And so this is this molecule that is formed here, the Pyrophosphate. It is broken.