Question: Give me an estimate number of races where horses grandsired by the Wild Risk have raced in?
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:grandsire <http://dbpedia.org/resource/Wild_Risk> . ?x prop:race ?uri  . ?uri rdf:type onto:HorseRace}