Question: Which ocean does the Swan Hill river flow into?
Answer(s):
answer: Southern Ocean

SPARQL query:
PREFIX ns: <http://rdf.freebase.com/ns/>
SELECT DISTINCT ?x
WHERE {
FILTER (?x != ?c)
FILTER (!isLiteral(?x) OR lang(?x) = '' OR langMatches(lang(?x), 'en'))
?c ns:geography.river.cities ns:m.08wtfy . 
?c ns:geography.river.mouth ?x .
?x ns:geography.geographical_feature.category ns:m.05kq4 .
}