Question: Name the rive whose mouth is located in Limerick and location is Dowra?
SPARQL:
SELECT DISTINCT ?uri WHERE {?uri <http://dbpedia.org/property/mouthLocation> <http://dbpedia.org/resource/Limerick> . ?uri <http://dbpedia.org/property/sourceLocation> <http://dbpedia.org/resource/Dowra>  . ?uri <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://dbpedia.org/ontology/River>}