28. The apparatus of claim 27 , wherein: said recursive router supplies said multimedia artifact with enriched metadata.
27. The apparatus of claim 21 , wherein: a recursive router is used with said multimedia artifact, to derive ontology scores and class scores, and to select the at least one ontology from the ontology database based on the ontology scores and relationship branches between ontologies and to select said selected classes from a class database based on the class scores and relationships branches between the semantic elements of the at least one ontology.