ODSFOAFRefExampleUserProjectUsers Projects PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> PREFIX rdfs: <http://rdfs.org/sioc/ns#> PREFIX sioc: <http://rdfs.org/sioc/ns#> PREFIX foaf: <http://xmlns.com/foaf/0.1/> PREFIX dc: <http://purl.org/dc/elements/1.1/> SELECT * WHERE { ?usr rdf:type sioc:User. ?usr rdfs:account_of ?sr . optional {?sr foaf:openid ?openid }. optional {?sr foaf:nick?title}. } Sample Data (Live Query Results) View Query Results (via SPARQL Protocol URL) View Query Results (via iSPARQL Results URL) View Query Editor (via iSPARQL Visual Query Editor URL)