PHPBB3REFExample2Dump of phpBB3 Posts PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> PREFIX sioc: <http://rdfs.org/sioc/ns#> PREFIX dct: <http://purl.org/dc/elements/1.1/> SELECT * FROM <http://demo.openlinksw.com/phpBB3_v/> WHERE { ?forum rdf:type sioc:Forum. optional{ ?forum sioc:name ?name }. optional{ ?forum sioc:container_of ?post } . optional{ ?post dct:title ?title } . optional{ ?post sioc:content ?content } . } LIMIT 10 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)