Question: What label, with the earliest founding date, is Jojo signed to?
Answer(s):
answer: Mercury Records

SPARQL query:
PREFIX ns: <http://rdf.freebase.com/ns/>
SELECT DISTINCT ?x
WHERE {
FILTER (?x != ns:m.01wjgjb)
FILTER (!isLiteral(?x) OR lang(?x) = '' OR langMatches(lang(?x), 'en'))
ns:m.01wjgjb ns:music.artist.label ?x .
?x ns:organization.organization.date_founded ?num .
}
ORDER BY ?num LIMIT 1