An example of a triangle diagram appears to the right. An organizational chart is the diagram of a hierarchy within an organization, and is depicted in tree form below.
Cow's milk can range from 3.7 to 5.1% lactose, although most milk in the U.S. is around 5%. So water buffalo milk may be slightly lower in lactose but not significantly so. I certainly wouldn't call it a low lactose product.
Milk without lactose still has health benefits. Lactose is sugar found in milk and requires the lactase enzyme, which your body secretes naturally, for it to be broken down into monosaccharides. You are incapable of fully digesting the milk sugar if your lactase level diminishes.