Table: polish_admin_divisions
Columns: car_plates_since_1937
voivodeship_separate_city
capital
area_in_1000km_1930
population_in_1000_1931

Question: what is the capital with the Voivodeship Separate city of białostockie?
SQL: SELECT "capital" FROM polish_admin_divisions WHERE "voivodeship_separate_city" = 'białostockie'

Question: between car plates of 80-84 what is the population in 1000 in year 1931?
SQL: SELECT "population_in_1000_1931" FROM polish_admin_divisions WHERE "car_plates_since_1937" = '80-84'

Question: tell me the population in 1000(1931) that has car plates since 1937 of 35-39.
SQL: SELECT "population_in_1000_1931" FROM polish_admin_divisions WHERE "car_plates_since_1937" = '35-39'

Question: tell me the name of the capital with an area of 20,4.
SQL: SELECT "capital" FROM polish_admin_divisions WHERE "area_in_1000km_1930" = '20,4'