. . . . "A relation between concepts and collections, where a Concept is said to cover a Collection; it corresponds to a link between the (reified) intensional and extensional interpretations of a (reified) class.\nE.g. the collection of vintage saxophones is covered by the Concept 'Saxophone' with the Parameter 'Vintage'."^^ . . "is covered by" . "\u00E8 ricoperto da" . .