Question: Give me the count of all people who ascented a peak in California?
SPARQL query:
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
PREFIX onto: <http://dbpedia.org/ontology/>
SELECT DISTINCT COUNT(?uri) WHERE { ?x onto:locatedInArea <http://dbpedia.org/resource/California> . ?x onto:firstAscentPerson ?uri  . ?uri rdf:type onto:Person}