"skos:narrowerTransitive is a transitive superproperty of skos:broader. By convention, skos:narrowerTransitive is not intended to be used in assertions, but provides a mechanism whereby the transitive closure of skos:narrower can be queried." . . . . . . "By convention, skos:narrowerTransitive is not used to make assertions. Rather, the properties can be used to draw inferences about the transitive closure of the hierarchical relation, which is useful e.g. when implementing a simple query expansion algorithm in a search application." . "2008-05-xx" . . . _:vb898454 . "narrower transitive" .