Table: curling_champ_2009
Columns: country
skip
w
l
pf
pa
ends_won
ends_lost
blank_ends_f_a
stolen_ends_for
stolen_ends_against
shot

Question: How many stolen ends against where there when Thomas Dufour was skip? 
SQL: SELECT "stolen_ends_against" FROM curling_champ_2009 WHERE "skip" = 'Thomas Dufour'

Question: What is the maximum number of stolen ends against for Japan? 
SQL: SELECT MAX("stolen_ends_against") FROM curling_champ_2009 WHERE "country" = 'Japan'

Question: Who was the skip when the stolen ends against was 13? 
SQL: SELECT "skip" FROM curling_champ_2009 WHERE "stolen_ends_against" = 13