Question: Name the river whose source is located in Ikelenge  District and mouth in Mozambique?
SPARQL:
SELECT DISTINCT ?uri WHERE {?uri <http://dbpedia.org/property/sourceLocation> <http://dbpedia.org/resource/Ikelenge_District> . ?uri <http://dbpedia.org/property/mouthCountry> <http://dbpedia.org/resource/Mozambique> . ?uri <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://dbpedia.org/ontology/River>}