List all who wrote for production code 1ark07.
CREATE TABLE table_73449 (
    "No." real,
    "Title" text,
    "Directed by" text,
    "Written by" text,
    "Original air date" text,
    "Production code" text,
    "Viewers (in millions)" text
)
SELECT "Written by" FROM table_73449 WHERE "Production code" = '1ARK07'
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: List all who wrote for production code 1ark07. ### Input: CREATE TABLE table_73449 (
    "No." real,
    "Title" text,
    "Directed by" text,
    "Written by" text,
    "Original air date" text,
    "Production code" text,
    "Viewers (in millions)" text
) ### Response: SELECT "Written by" FROM table_73449 WHERE "Production code" = '1ARK07'