Question: Which birds are there in the United States?
SPARQL:
PREFIX yago: <http://dbpedia.org/class/yago/> PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#> PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> SELECT ?uri ?string WHERE { ?uri rdf:type yago:BirdsOfTheUnitedStates. ?uri rdfs:label ?label. FILTER (lang(?label) = "en") . OPTIONAL {?uri rdfs:label ?string .} FILTER (lang(?string) = "en") }