CREATE TABLE table_72253 ("Series #" FLOAT, "Season #" FLOAT, "Title" CLOB, "Directed by" CLOB, "Written by" CLOB, "Original air date" CLOB)

Who were the authors of series episode #25?
SELECT "Written by" FROM table_72253 WHERE "Series #" = '25'
SELECT "Written by" FROM "table_72253" WHERE "Series #" = '25'