Question: For how many cities's teams did David Bowens play?
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 { <http://dbpedia.org/resource/David_Bowens> onto:formerTeam ?x . ?x onto:locationCity ?uri  . ?x rdf:type onto:SportsTeam}