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.
1 Carbohydrate or lactose levels in cows milk (composed primarily of glucose and glactose) range from 4.7% to 5.0%. Also know as milk sugar.  Milk fat is a complex mix of lipids. The major type of lipids in milk fat is called Tiglycerides, which are composed of three fatty acids.