CREATE TABLE "table1_28582091_2" (
  "no" real,
  "title" text,
  "directed_by" text,
  "written_by" text,
  "original_air_date" text,
  "production_code" text,
  "u_s_viewers_million" text
);

Question: What was the title of the episode with production code 2J5515?
SQL: SELECT "title" FROM "table1_28582091_2" WHERE "production_code"='2J5515';