CREATE TABLE "list_of_prefectures_as_of_2010" (
  "number_in_map" text,
  "prefecture" text,
  "area_km" text,
  "population_2001" real,
  "pop_density_km" text
);

Question: How many prefectures have an area of 361.719 kilometers squared?
SQL: SELECT COUNT("prefecture") FROM "list_of_prefectures_as_of_2010" WHERE "area_km"='361.719';

Question: What prefecture is listed in the map as number 39?
SQL: SELECT "prefecture" FROM "list_of_prefectures_as_of_2010" WHERE "number_in_map"='39';

Question: How many prefectures have a population density of 16 people/kilometers squared?
SQL: SELECT COUNT("pop_density_km") FROM "list_of_prefectures_as_of_2010" WHERE "number_in_map"='16';