Question: What band does Adam Levine sing with that was nominated for an award in the 50th Annual Grammy Awards?
Answer(s):
answer: Maroon 5

SPARQL query:
PREFIX ns: <http://rdf.freebase.com/ns/>
SELECT DISTINCT ?x
WHERE {
FILTER (?x != ns:m.044mfr)
FILTER (!isLiteral(?x) OR lang(?x) = '' OR langMatches(lang(?x), 'en'))
ns:m.044mfr ns:music.group_member.membership ?y .
?y ns:music.group_membership.group ?x .
?x ns:award.award_nominee.award_nominations ?c .
?c ns:award.award_nomination.ceremony ns:m.02rjjll . 
}