Question: Which monarchs of the United Kingdom were married to a German?
SPARQL:
PREFIX yago: <http://dbpedia.org/class/yago/> PREFIX onto: <http://dbpedia.org/ontology/> PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#> PREFIX res: <http://dbpedia.org/resource/> SELECT DISTINCT ?uri ?string WHERE { ?uri rdf:type yago:MonarchsOfTheUnitedKingdom . { ?uri onto:spouse ?spouse . } UNION { ?spouse onto:spouse ?uri . } ?spouse onto:birthPlace res:Germany. OPTIONAL {?uri rdfs:label ?string. FILTER (lang(?string) = 'en') } }