What is the state of the city of denver, which has a rank less than 10?
CREATE TABLE "largest_cities_and_metropolitan_areas" (
  "rank" real,
  "city" text,
  "state" text,
  "population" real,
  "metro_population_of_4_aspects" real
);
SELECT "state" FROM "largest_cities_and_metropolitan_areas" WHERE "rank"<10 AND "city"='denver';