CREATE TABLE table_73449 ("No." FLOAT, "Title" CLOB, "Directed by" CLOB, "Written by" CLOB, "Original air date" CLOB, "Production code" CLOB, "Viewers  ( in millions ) " CLOB)

List all who wrote for production code 1ark07.
SELECT "Written by" FROM table_73449 WHERE "Production code" = '1ARK07'
SELECT "Written by" FROM "table_73449" WHERE "Production code" = '1ARK07'