PREFIX afn: <http://jena.hpl.hp.com/ARQ/function#> PREFIX core: <http://vivoweb.org/ontology/core#> SELECT ?link (afn:localname(?link) AS ?linkName) ?anchor ?url ?rank WHERE { ?subject ?property ?link OPTIONAL { ?link core:linkAnchorText ?anchor } OPTIONAL { ?link core:linkURI ?url } OPTIONAL { ?link core:rank ?rank } FILTER ( bound(?url) ) } ORDER BY ?rank ?anchor CONSTRUCT { ?subject ?property ?link . ?link ?linkProp ?linkObj } WHERE { { ?subject ?property ?link } UNION { ?subject ?property ?link . ?link ?linkProp ?linkObj } }