. . . . . . . . . . . . . . . . . . . . . . _:vb50999613 . _:vb50999614 . _:vb50999612 . _:vb50999614 . . _:vb50999613 . _:vb50999613 . _:vb50999612 . . "SKOS core" . . . . . _:vb50999614 _:vb50999613 . . . _:vb50999612 . _:vb50999612 _:vb50999614 . . . . . _:vb50999613 . . . . . . _:vb50999614 . . . . . . . . . . . . . . . . . . . . . "skos" . . . . . . .