Question: Which football teams are in a city where Oakland Athletics were the tenants?
SPARQL query:
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
PREFIX res: <http://dbpedia.org/resource/>
PREFIX onto: <http://dbpedia.org/ontology/>
SELECT DISTINCT ?uri WHERE { ?x onto:tenant <http://dbpedia.org/resource/Oakland_Athletics> . ?uri onto:locationCity ?x . ?uri rdf:type onto:AmericanFootballTeam}