Question: Who produced films starring Natalie Portman?
SPARQL query:
PREFIX onto: <http://dbpedia.org/ontology/> PREFIX res: <http://dbpedia.org/resource/> PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#> SELECT DISTINCT ?uri ?string WHERE { ?film rdf:type onto:Film . ?film onto:starring res:Natalie_Portman . ?film onto:producer ?uri . OPTIONAL {?uri rdfs:label ?string . FILTER (lang(?string) = 'en') } }