Question: Which U.S. states possess gold minerals?
SPARQL:
PREFIX yago: <http://dbpedia.org/class/yago/> PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#> PREFIX dbpedia2: <http://dbpedia.org/property/> SELECT DISTINCT ?uri ?string WHERE { ?uri rdf:type yago:StatesOfTheUnitedStates . ?uri dbpedia2:mineral ?mineral . FILTER (regex(?mineral,'Gold')) . OPTIONAL {?uri rdfs:label ?string. FILTER (lang(?string) = 'en') } }