Question: What is the earliest founded organization that George Soros owns?
Answer(s):
answer: Central European University

SPARQL query:
PREFIX ns: <http://rdf.freebase.com/ns/>
SELECT DISTINCT ?x
WHERE {
FILTER (?x != ns:m.0gyk6w)
FILTER (!isLiteral(?x) OR lang(?x) = '' OR langMatches(lang(?x), 'en'))
ns:m.0gyk6w ns:organization.organization_founder.organizations_founded ?x .
?x ns:organization.organization.date_founded ?num .
}
ORDER BY ?num LIMIT 1