CREATE TABLE "the_five_regions" (
  "name" text,
  "population_2009_estimate" text,
  "largest_city" text,
  "largest_metropolitan_area" text,
  "number_of_states" text
);

Question: What is the 2009 estimate population of the Northeast?
SQL: SELECT "population_2009_estimate" FROM "the_five_regions" WHERE "name"='northeast';

Question: What is the 2009 estimate population of the region with Manaus as the largest city?
SQL: SELECT "population_2009_estimate" FROM "the_five_regions" WHERE "largest_city"='manaus';

Question: How many states has a 2009 estimate population of 27,3 million?
SQL: SELECT "number_of_states" FROM "the_five_regions" WHERE "population_2009_estimate"='27,3 million';

Question: What is the largest metropolitan area of the Central-West?
SQL: SELECT "largest_metropolitan_area" FROM "the_five_regions" WHERE "name"='central-west';

Question: What is the 2009 estimate population of the region with Manaus as the largest city?
SQL: SELECT "population_2009_estimate" FROM "the_five_regions" WHERE "largest_city"='manaus';