When we look at the plants we can see how the structure is. The leaf blade, the leaf stem and the bud which is located at the very base of that so this whole structure in reality is a true leaf in terms of its botanical definition. And as a consequence we get different growth bonds as this grows along wherever it grows. On a leaf branch, on the ground, underground or up in a tree, or in some cases they literally grow under the surface of rocks as that's what?s available to them. Now if we look at the buds, one of the things that you can do with the buds is actually the bud can be removed surgically, put into a nutrient mixture. And by being grown in that nutrient mixture behaves as if it's a seed. And we can grow new plants.