Question: Which of the many children in the Kennedy family were killed by assassination?
Answer(s):
answer: Robert F. Kennedy
answer: John F. Kennedy

SPARQL query:
PREFIX ns: <http://rdf.freebase.com/ns/>
SELECT DISTINCT ?x
WHERE {
FILTER (?x != ns:m.01qlg1)
FILTER (!isLiteral(?x) OR lang(?x) = '' OR langMatches(lang(?x), 'en'))
ns:m.01qlg1 ns:people.person.children ?x .
?x ns:people.deceased_person.cause_of_death ns:m.012hw . 
}