The episode which originally aired on February 11, 2005 had which episode # of the season?
CREATE TABLE "table1_228973_11" (
  "no_in_series" real,
  "no_in_season" real,
  "title" text,
  "directed_by" text,
  "written_by" text,
  "original_air_date" text
);
SELECT "no_in_season" FROM "table1_228973_11" WHERE "original_air_date"='February 11, 2005';