Question: What genre of music is the piece that was played by Richard Wagner?
Answer(s):
answer: Opera

SPARQL query:
PREFIX ns: <http://rdf.freebase.com/ns/>
SELECT DISTINCT ?x
WHERE {
FILTER (?x != ns:m.06c44)
FILTER (!isLiteral(?x) OR lang(?x) = '' OR langMatches(lang(?x), 'en'))
ns:m.06c44 ns:music.artist.genre ?x .
?x ns:kg.object_profile.prominent_type ns:music.compositional_form . 
}