Tell me the circuit for 20 august
CREATE TABLE table_31561 (
    "Name" text,
    "Circuit" text,
    "Date" text,
    "Winning driver" text,
    "Winning constructor" text,
    "Report" text
)
SELECT "Circuit" FROM table_31561 WHERE "Date" = '20 august'
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: Tell me the circuit for 20 august ### Input: CREATE TABLE table_31561 (
    "Name" text,
    "Circuit" text,
    "Date" text,
    "Winning driver" text,
    "Winning constructor" text,
    "Report" text
) ### Response: SELECT "Circuit" FROM table_31561 WHERE "Date" = '20 august'