Question: When did the team owned by Serena Williams win the Super Bowl?
Answer(s):
answer: Super Bowl VII
answer: Super Bowl VIII

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.professional_sports_team.owner_s ns:m.015z4j . 
?c ns:sports.sports_team.championships ?x .
}