Question: Where does the river go trough that its origin is Holston River?
Answer(s):
answer: Kentucky
answer: Mississippi
answer: Tennessee
answer: Alabama

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.origin ns:m.036v0x . 
?c ns:location.location.partially_containedby ?x .
}