Question: what is the capital with the Voivodeship Separate city of białostockie?
SQL: SELECT "Capital" FROM "2-11654169-1" 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 "2-11654169-1" 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 "2-11654169-1" 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 "2-11654169-1" WHERE "Area in 1000km² (1930)" = '20,4';