Question: What was the cause of the composer  who created" Simple song of freedom's" death?
Answer(s):
answer: Surgical complications

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.composer.compositions ns:m.0_k8k75 . 
?c ns:people.deceased_person.cause_of_death ?x .
}