Question: Where does the river flow into which begins in Lebrsnik?
SPARQL query: SELECT DISTINCT ?uri WHERE { ?x <http://dbpedia.org/ontology/sourcePlace> <http://dbpedia.org/resource/Lebršnik> . ?x <http://dbpedia.org/ontology/riverMouth> ?uri  . }
Answer: [Adriatic Sea] is the mouth of the river whose source place is Lebrsnik.