Question: Which countries have places with more than two caves?
SPARQL query:
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#> SELECT DISTINCT ?uri ?string WHERE { ?cave rdf:type onto:Cave . ?cave onto:location ?uri . ?uri rdf:type onto:Country . OPTIONAL { ?uri rdfs:label ?string. FILTER (lang(?string) = 'en') } } GROUP BY ?uri ?string HAVING (COUNT(?cave) > 2)