PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#> PREFIX core: <http://vivoweb.org/ontology/core#> PREFIX afn: <http://jena.hpl.hp.com/ARQ/function#> SELECT DISTINCT ?authorship (afn:localname(?authorship) AS ?authorshipName) ?person ?personName WHERE { GRAPH ?g1 { ?subject ?property ?authorship } OPTIONAL { GRAPH ?g2 { ?authorship core:authorRank ?rank } } OPTIONAL { GRAPH ?g3 { ?authorship core:linkedAuthor ?person } GRAPH ?g4 { ?person rdfs:label ?personName } } } ORDER BY ?rank ?personName