To determine the ratio of formation and consumption, each trajectory was interrogated to find all reactions involving each species. If a given species is a reactant of an identified reaction, then that means it was consumed; if it is a product of the reaction, then that means it was formed. If the ratio of the total number of instances of formation across all trajectories to the total number of instances of consumption across all trajectories is greater than some threshold (here chosen as 1.5, meaning that three of the species are produced for every two consumed), then it could be a network product.