PREFIX xsd: <http://www.w3.org/2001/XMLSchema#>
PREFIX dc: <http://purl.org/dc/elements/1.1/>
PREFIX foaf: <http://xmlns.com/foaf/0.1/>
PREFIX mo: <http://purl.org/ontology/mo/>
PREFIX po: <http://purl.org/ontology/po/>
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
PREFIX rel: <http://purl.org/vocab/relationship/>
PREFIX rev: <http://purl.org/stuff/rev#>

SELECT DISTINCT ?episode ?brandLabel ?seriesLabel ?episodeLabel  WHERE {   

        ?brand a po:Brand;
            po:series ?series;
            dc:title ?brandLabel.

	?series a po:Series;
	    po:episode ?episode;
            dc:title ?seriesLabel.

        ?episode po:version ?version;
            dc:title ?episodeLabel.

	?broadcast po:broadcast_of ?version;
	    po:schedule_date "2009-05-11"^^xsd:date;
	    po:broadcasted_on <http://www.bbc.co.uk/bbctwo#service>.
}	    
ORDER BY ?brandLabel ?seriesLabel ?episodeLabel