What is the episode number of the episode with a production code of 4aky14?
CREATE TABLE "table1_26825349_1" (
  "no_in_series" real,
  "no_in_season" real,
  "title" text,
  "directed_by" text,
  "written_by" text,
  "original_air_date" text,
  "production_code" text,
  "u_s_viewers_millions" text
);
SELECT "no_in_season" FROM "table1_26825349_1" WHERE "production_code"='4AKY14';