CREATE TABLE table_15749 ("Title" CLOB, "Directed by" CLOB, "Written by" CLOB, "Original air date" CLOB, "Prod. code" FLOAT)

Who wrote the episode that was directed by dan lerner?
SELECT "Written by" FROM table_15749 WHERE "Directed by" = 'dan lerner'
SELECT "Written by" FROM "table_15749" WHERE "Directed by" = 'dan lerner'