Table: curling_2011_championship
Columns: country
skip
w
l
pf
pa
ends_won
ends_lost
blank_ends
stolen_ends
shot_pct

Question: When czech republic is the country what is the lowest amount l?
SQL: SELECT MIN("l") FROM curling_2011_championship WHERE "country" = 'Czech Republic'

Question: What is the largest amount of ends lost?
SQL: SELECT MAX("ends_lost") FROM curling_2011_championship

Question: When sweden is the country who is the skip?
SQL: SELECT "skip" FROM curling_2011_championship WHERE "country" = 'Sweden'

Question: When chen lu'an is the skip what is the lowest amount l's?
SQL: SELECT MIN("l") FROM curling_2011_championship WHERE "skip" = 'Chen Lu''an'