Question: Who does the actor that played the character Charles Danner play on "The Simpsons"?
Answer(s):
answer: Carl Carlson
answer: Moe Szyslak
answer: Comic Book Guy
answer: Apu Nahasapeemapetilon
answer: Chief Wiggum

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.character ns:m.0h2h0xn . 
?c ns:tv.tv_actor.starring_roles ?y .
?y ns:tv.regular_tv_appearance.character ?x .
?y ns:tv.regular_tv_appearance.special_performance_type ns:m.02nsjvf .
?y ns:tv.regular_tv_appearance.series ns:m.07c72 .
}