SELECT DISTINCT ?uri WHERE { ?x <http://dbpedia.org/property/leaderName> <http://dbpedia.org/resource/Irene_Mambilima> . ?uri <http://dbpedia.org/ontology/sourceCountry> ?x . ?uri <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://dbpedia.org/ontology/River>}
Which rivers start in a country whose leader is Irene Mambilima?
SELECT DISTINCT ?v WHERE { ?k property:leader_name resource:Irene_Mambilima . ?v property:source_country ?k . ?v rdf:type ontology:River }
Luvua River, Kafue River, Sakeji River, Zambezi
The rivers whose source country's leader name is Irene Mambilima are [Luvua River, Kafue River, Sakeji River, Zambezi].
Rivers that originate from Irene Mambilima are [Luvua River, Kafue River, Sakeji River, Zambezi River].
The rivers whose source country's leader name is her are [Luvua River, Kafue River, Sakeji River, Zambezi].
The rivers whose country is named after them [the Luvua River, the Kafue River, the Sakeji River, the Zambezi River].