Question: In which city are the schools whose district is Mumbai Suburban?
SPARQL:
SELECT DISTINCT ?uri WHERE { ?x <http://dbpedia.org/property/district> <http://dbpedia.org/resource/Mumbai_Suburban_district> . ?x <http://dbpedia.org/ontology/city> ?uri  . ?x <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://dbpedia.org/ontology/School>}