What is Winner, when Date is '20 August'?
CREATE TABLE table_58889 (
    "Circuit" text,
    "City / State" text,
    "Date" text,
    "Winner" text,
    "Team" text
)
SELECT "Winner" FROM table_58889 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: What is Winner, when Date is '20 August'? ### Input: CREATE TABLE table_58889 (
    "Circuit" text,
    "City / State" text,
    "Date" text,
    "Winner" text,
    "Team" text
) ### Response: SELECT "Winner" FROM table_58889 WHERE "Date" = '20 august'