Question: What kind of guitar did the composer of "Sillyworld" play?
Answer(s):
answer: Bass guitar

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.027rysw . 
?c ns:music.group_member.instruments_played ?x .
?x ns:music.instrument.family ns:m.0342h .
}