Question: What celebrity, who was executive producer of National Lampoons Pledge This, also dated Brody Jenner?
Answer(s):
answer: Paris Hilton

SPARQL query:
PREFIX ns: <http://rdf.freebase.com/ns/>
SELECT DISTINCT ?x
WHERE {
FILTER (?x != ns:m.026_dq6)
FILTER (!isLiteral(?x) OR lang(?x) = '' OR langMatches(lang(?x), 'en'))
ns:m.026_dq6 ns:base.popstra.celebrity.dated ?y .
?y ns:base.popstra.dated.participant ?x .
?x ns:film.producer.films_executive_produced ns:m.072txz . 
}