Question: What are the names of the sons of the actor who played in the movie "Uncle Tom's Fairy Tales?"?
Answer(s):
answer: Franklin Pryor
answer: Richard Pryor Jr.
answer: Steven Pryor

SPARQL query:
PREFIX ns: <http://rdf.freebase.com/ns/>
SELECT DISTINCT ?x
WHERE {
FILTER (?x != ?c)
FILTER (!isLiteral(?x) OR lang(?x) = '' OR langMatches(lang(?x), 'en'))
?c ns:film.actor.film ?k .
?k ns:film.performance.film ns:m.0dbf5l . 
?c ns:people.person.children ?x .
?x ns:people.person.gender ns:m.05zppz .
}