Question: How many cities are around the sea which flows into the Atlantic?
SPARQL query:
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
PREFIX prop: <http://dbpedia.org/property/>
PREFIX onto: <http://dbpedia.org/ontology/>
SELECT DISTINCT COUNT(?uri) WHERE { ?x onto:inflow <http://dbpedia.org/resource/Atlantic_Ocean> . ?x prop:cities ?uri . ?uri rdf:type onto:City}