Question: When did the winning team of the 2013 AFC Championship win the superbowl?
Answer(s):
answer: 2001 AFC Championship Game
answer: 2013 AFC Championship Game
answer: Super Bowl XLVII
answer: Super Bowl XXXV

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:sports.sports_team.championships ns:m.0_gtz8t . 
?c ns:sports.sports_team.championships ?x .
}