Role of narrator, and a Year larger than 2009, and a Release/Air Date of 7 october 2010 belongs to what author?
CREATE TABLE "radio_and_cd_audio_drama" (
  "year" real,
  "role" text,
  "author" text,
  "radio_station_production_company" text,
  "release_air_date" text
);
SELECT "author" FROM "radio_and_cd_audio_drama" WHERE "role"='narrator' AND "year">2009 AND "release_air_date"='7 october 2010';