Question: What is the ethnicity of the songwriter for "Cockiness (Love It)"?
Answer(s):
answer: Afro-Guyanese

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.lyricist.lyrics_written ns:m.0hn8bbm . 
?c ns:people.person.ethnicity ?x .
}