Who is the leader of the town where the Myntdu river originates?
SELECT DISTINCT ?uri WHERE { <http://dbpedia.org/resource/Myntdu_River> <http://dbpedia.org/ontology/origin> ?x . ?x <http://dbpedia.org/ontology/leaderName> ?uri  . ?x <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://dbpedia.org/ontology/Town>}
Myntdu_River