Question: Who are the brothers and sisters of the person who wrote the lyrics for "Heal the World"?
Answer(s):
answer: La Toya Jackson
answer: Jackie Jackson
answer: Tito Jackson
answer: Jermaine Jackson
answer: Marlon Jackson
answer: Rebbie Jackson
answer: Randy Jackson
answer: Joh'Vonnie Jackson
answer: Janet Jackson
answer: Brandon Jackson

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:music.lyricist.lyrics_written ns:m.09bqc6 . 
?c ns:people.person.sibling_s ?y .
?y ns:people.sibling_relationship.sibling ?x .
}