Question: What book with Willy Wonka was written by Roald Dahl?
Answer(s):
answer: Charlie and the Chocolate Factory

SPARQL query:
PREFIX ns: <http://rdf.freebase.com/ns/>
SELECT DISTINCT ?x
WHERE {
FILTER (?x != ns:m.0347sv)
FILTER (!isLiteral(?x) OR lang(?x) = '' OR langMatches(lang(?x), 'en'))
ns:m.0347sv ns:fictional_universe.fictional_character.appears_in_these_fictional_universes ?x .
?x ns:book.written_work.author ns:m.0ff2k . 
}