Hyper text Representation
We adopt the graph theory to conveniently represent and manipulate hypertext-organized websites.
Traditionally, a graph G is defined as a set of vertices V and set of edges E, which link pairs of vertices.
In other words G=(V,E). Let us define hypertext H as a labeled directed connected graph, with a set of
nodes N and a set of links L such that for any two nodes there exists a directed path that connects these
nodes.