Question: Who are the children of the artists who headlined the Tina! 50th Anniversary Tour and Ike?
Answer(s):
answer: Ronnie Turner
answer: Raymond Craig Turner

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.artist.concert_tours ns:m.0463c2k . 
?c ns:people.person.children ?x .
?x ns:people.person.parents ns:m.0dbzg .
}