Question: In which NBA seasons did the basketball team currently coached by Brad Stevens win the championship?
Answer(s):
answer: 2008 NBA Finals
answer: 1969 NBA Finals
answer: 1986 NBA Finals
answer: 1984 NBA Finals
answer: 1981 NBA Finals
answer: 1976 NBA Finals
answer: 1974 NBA Finals
answer: 1968 NBA Finals
answer: 1966 NBA Finals
answer: 1965 NBA Finals
answer: 1964 NBA Finals
answer: 1963 NBA Finals
answer: 1962 NBA Finals
answer: 1961 NBA Finals
answer: 1960 NBA Finals
answer: 1959 NBA Finals
answer: 1957 NBA Finals

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:basketball.basketball_team.head_coach ns:m.02qwvmq . 
?c ns:sports.sports_team.championships ?x .
}