Question: Which arena held games of the 2012 NCAA basketball tournament and is sponsored by Nationwide Mutual Insurance Company?
Answer(s):
answer: Nationwide Arena

SPARQL query:
PREFIX ns: <http://rdf.freebase.com/ns/>
SELECT DISTINCT ?x
WHERE {
FILTER (?x != ns:m.080nmfs)
FILTER (!isLiteral(?x) OR lang(?x) = '' OR langMatches(lang(?x), 'en'))
ns:m.080nmfs ns:time.event.locations ?x .
?x ns:business.sponsored_recipient.sponsorship ?c .
?c ns:business.sponsorship.sponsored_by ns:m.04d8qc . 
}