Question: What medical cause did singer Whitney Houston die of?
Answer(s):
answer: Coronary artery disease
answer: Cocaine overdose

SPARQL query:
PREFIX ns: <http://rdf.freebase.com/ns/>
SELECT DISTINCT ?x
WHERE {
FILTER (?x != ns:m.086qd)
FILTER (!isLiteral(?x) OR lang(?x) = '' OR langMatches(lang(?x), 'en'))
ns:m.086qd ns:people.deceased_person.cause_of_death ?x .
?x ns:kg.object_profile.prominent_type ns:medicine.disease . 
}