12. The method of claim 11 , further comprising examining a first pathway for instances of start nodes and end nodes that comprises information that satisfies a query, the first pathway selected from the group of pathways between matching node types having a fewest link count.
16. The method of claim 12 , further comprising ordering the plurality of pathways by ordering pathways having at least one many-to-one links between pathway nodes, whereby pathways having more many-to-one links are ordered for earlier examination than pathways having equal link counts and no many-to-one links.