Question: Count all that was built by a company whose leader is Kazuo Hirai?
SPARQL query:
PREFIX prop: <http://dbpedia.org/property/>
PREFIX onto: <http://dbpedia.org/ontology/>
SELECT DISTINCT COUNT(?uri) WHERE { ?x prop:keyPeople <http://dbpedia.org/resource/Kazuo_Hirai> . ?uri onto:manufacturer ?x  . }