Question: What kind of cancer did the artist who record "Soul Searchin'" have?
Answer(s):
answer: Lung cancer
answer: Brain tumor

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.featured_artist.recordings ns:m.0x83rl . 
?c ns:people.deceased_person.cause_of_death ?x .
}