Question: Who was the first president of the AFL, who died of Natural causes?
Answer(s):
answer: Bud Adams

SPARQL query:
PREFIX ns: <http://rdf.freebase.com/ns/>
SELECT DISTINCT ?x
WHERE {
FILTER (?x != ns:m.0ysy)
FILTER (!isLiteral(?x) OR lang(?x) = '' OR langMatches(lang(?x), 'en'))
ns:m.0ysy ns:organization.organization.founders ?x .
?x ns:people.deceased_person.cause_of_death ns:m.02knxx . 
}