Question: Whose mayors are affiliated with Christen-Democratisch en Vlaams?
SPARQL query:
PREFIX prop: <http://dbpedia.org/property/>
PREFIX onto: <http://dbpedia.org/ontology/>
SELECT DISTINCT ?uri WHERE { ?x prop:affiliation <http://dbpedia.org/resource/Christen-Democratisch_en_Vlaams> . ?uri onto:leaderName ?x  . }