Question: List the leaders of all the cities through which the Ganga river flows ?
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 ?uri WHERE { <http://dbpedia.org/resource/Ganges> prop:city ?x . ?x onto:leaderName ?uri  . ?x rdf:type onto:City}