Who directed the episode with a UK viewership of exactly 5.77 million?
CREATE TABLE table_30918 (
    "No. overall" real,
    "No. for series" real,
    "Title" text,
    "Directed by" text,
    "Written by" text,
    "Original air date" text,
    "UK viewers (million)" text
)
SELECT "Directed by" FROM table_30918 WHERE "UK viewers (million)" = '5.77'
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: Who directed the episode with a UK viewership of exactly 5.77 million? ### Input: CREATE TABLE table_30918 (
    "No. overall" real,
    "No. for series" real,
    "Title" text,
    "Directed by" text,
    "Written by" text,
    "Original air date" text,
    "UK viewers (million)" text
) ### Response: SELECT "Directed by" FROM table_30918 WHERE "UK viewers (million)" = '5.77'