Question: Where does the river end on whose border we find in Bjelasnica?
SPARQL query: SELECT DISTINCT ?uri WHERE { ?x <http://dbpedia.org/ontology/border> <http://dbpedia.org/resource/Bjelašnica> . ?x <http://dbpedia.org/ontology/mouthCountry> ?uri  . }
Answer: [Croatia] is the mouth country of the river in the border with Bjelanica.