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.
Below is a brief outline of the lactose content of various products, where you will see that cheese in general is very low in lactose, with exception of buffalo milk mozzarella, only because a the cheese still contains a lot of the whey and is soaked in the whey while stored to maintain its soft consistency. 4.8g/100g.