Question: How many kids were in the Kennedy family, who contributed to the story of the film A Profile in Courage?
Answer(s):
answer: John F. Kennedy

SPARQL query:
PREFIX ns: <http://rdf.freebase.com/ns/>
SELECT DISTINCT ?x
WHERE {
FILTER (?x != ns:m.01qlg1)
FILTER (!isLiteral(?x) OR lang(?x) = '' OR langMatches(lang(?x), 'en'))
ns:m.01qlg1 ns:people.person.children ?x .
?x ns:film.film_story_contributor.film_story_credits ns:m.05drjg2 . 
}