Question: What other character  was played by the actor who olayed the role of the Dragon Spirit in the Lord of the Rings series?
Answer(s):
answer: Denethor II

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.0h5jykh . 
?c ns:film.actor.film ?y .
?y ns:film.performance.character ?x .
?y ns:film.performance.film ns:m.017gm7 .
}