In what circuit was Bruno Spengler the winning driver?
CREATE TABLE table_25213146_2 (
    circuit VARCHAR,
    winning_driver VARCHAR
)
SELECT circuit FROM table_25213146_2 WHERE winning_driver = "Bruno Spengler"
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: In what circuit was Bruno Spengler the winning driver? ### Input: CREATE TABLE table_25213146_2 (
    circuit VARCHAR,
    winning_driver VARCHAR
) ### Response: SELECT circuit FROM table_25213146_2 WHERE winning_driver = "Bruno Spengler"