Question: Who founded the Federal Reserve Board and held his position in the government beginning 1929-01-01?
Answer(s):
answer: Franklin D. Roosevelt

SPARQL query:
PREFIX ns: <http://rdf.freebase.com/ns/>
SELECT DISTINCT ?x
WHERE {
FILTER (?x != ns:m.02xmb)
FILTER (!isLiteral(?x) OR lang(?x) = '' OR langMatches(lang(?x), 'en'))
ns:m.02xmb ns:organization.organization.founders ?x .
?x ns:government.politician.government_positions_held ?c .
?c ns:government.government_position_held.from ?num .
FILTER (?num > "1929-01-01"^^xsd:dateTime) . 
}