Best story of the prototypes, he talks about whether subdivisions as he split the diagram, it will often have the Word always, as in the diagram, we can see that there is a living thing, then that would be split off from the wider down to words. But sometimes it's difficult for some of the categories, such as: If we are talking about a vegetable that we are divided into various categories which vegetables and flowers and trees. Remove the word "vegetables coming into it will be kind of a lot of vegetables. Remove the word flowers we will be expanding the kinds of flowers and trees that come to extend our removal has many of the same types of plants. But if we came up classification to the avocado and tomato, and then sometimes, we might not have that.