CREATE TABLE "second_line_series" (
  "airing_date" text,
  "number_of_episodes" real,
  "hd_format" text,
  "highest_average_point_ratings" real,
  "genre" text,
  "official_website" text
);

Question: What was the airing date when the number of episodes was larger than 20 and had the genre of costume action?
SQL: SELECT "airing_date" FROM "second_line_series" WHERE "number_of_episodes">20 AND "genre"='costume action';

Question: What are the number of episodes when the genre is modern drama and the highest average ratings points are 28?
SQL: SELECT AVG("number_of_episodes") FROM "second_line_series" WHERE "genre"='modern drama' AND "highest_average_point_ratings"=28;