Question: Which actor plays the parent of David Marcus in Star Trek?
Answer(s):
answer: Vic Mignogna
answer: William Shatner
answer: Jim Carrey

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:fictional_universe.fictional_character.children ns:m.077kc8 . 
?c ns:tv.tv_character.appeared_in_tv_program ?y .
?y ns:tv.regular_tv_appearance.actor ?x .
}