Question: Who is engaged to the actor from "Rock Mafia Presents: The Big Bang"?
Answer(s):
answer: Liam Hemsworth

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.0w1x037 . 
?c ns:celebrities.celebrity.sexual_relationships ?y .
?y ns:celebrities.romantic_relationship.celebrity ?x .
?y ns:celebrities.romantic_relationship.relationship_type ns:m.02_99rl .
}