What city is ranked greater than 6, and the airport is St. Petersburg/Clearwater (PIE)
CREATE TABLE "busiest_domestic_routes_from_lex_april_2" (
  "rank" real,
  "city" text,
  "airport" text,
  "passengers" real,
  "carriers" text
);
SELECT "city" FROM "busiest_domestic_routes_from_lex_april_2" WHERE "rank">6 AND "airport"='st. petersburg/clearwater (pie)';