What was the audience for Episode 21?
CREATE TABLE table_56319 (
    "Episode" text,
    "Title" text,
    "Date of emission" text,
    "Audience" text,
    "Share" text
)
SELECT "Audience" FROM table_56319 WHERE "Episode" = '21'
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: What was the audience for Episode 21? ### Input: CREATE TABLE table_56319 (
    "Episode" text,
    "Title" text,
    "Date of emission" text,
    "Audience" text,
    "Share" text
) ### Response: SELECT "Audience" FROM table_56319 WHERE "Episode" = '21'