Question: The person who published editions for Character Makes a Difference played what instrument?
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:book.author.book_editions_published ns:m.04yndnx . 
?c ns:music.group_member.instruments_played ?x .
}