Who wrote the sorry of the episode directed by Dan Attias? 
CREATE TABLE "table1_13755296_1" (
  "series_num" real,
  "season_num" real,
  "title" text,
  "story_by" text,
  "teleplay_by" text,
  "directed_by" text,
  "original_air_date" text
);
SELECT "story_by" FROM "table1_13755296_1" WHERE "directed_by"='Dan Attias';