What is the title of the episode with the production code 2-19?
CREATE TABLE "table1_234886_3" (
  "no_in_series" real,
  "no_in_season" real,
  "title" text,
  "directed_by" text,
  "written_by" text,
  "original_air_date" text,
  "prod_code" text
);
SELECT "title" FROM "table1_234886_3" WHERE "prod_code"='2-19';