**5. Interpretation of objective graphs**

An objective graph � can be regarded to be a concept denoted by C(�) and modified by other concepts and properties that are denoted by L(�). If each concept is identified with the set of instances of the concept, an objective graph can be identified with a subset of the set denoted by C(�) that is obtained from C(�) by restricting it by sets and functions denoted by L(��. �o �a�e the i�entification clear, we here �efine an interpretation of an objective graph, as follows.
