1. A method of providing a visualization graph on a computer comprising: storing data corresponding to a plurality of entities having a particular type, wherein a semantic net includes the entities and wherein the entities are linked to each other by a plurality of relations; providing a visualization graph in response to a query with respect to an entity selected from the plurality of entities, wherein the visualization graph includes a plurality of sectors representing the results of the query; and allocating the entities to a predetermined sector of the graph depending on their entity type.