So the PH is about two. And that low PH essentially stimulates it, activates an enzyme, a proteolytic enzyme known as pepsin. So the protein inside the stomach is essentially denatured. It essentially goes from being a very structured protein to a randomly coiled protein, and that increases the surface area of that particular protein. And now the pepsin can act on that increased surface area and cleave break down that protein into smaller protein molecules. Now, those smaller protein molecules move from this lumen of the stomach is the lumen of the small intestine.