Question: The artist of the concert tour named John Mayer 2008 Summer Tour plays what type of music?
Answer(s):
answer: Indie rock
answer: Blues
answer: Alternative rock
answer: Folk rock
answer: Country
answer: Soul rock
answer: Soft rock
answer: Blue-eyed soul
answer: Folk music
answer: Blues rock
answer: Pop rock
answer: Pop music
answer: Rock music
answer: Acoustic music
answer: Soul music
answer: Country rock

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.artist.concert_tours ns:m.04gkk8d . 
?c ns:music.artist.genre ?x .
}