When svein tuft is the winner what is the highest stage?
CREATE TABLE table_28298471_14 (
    stage INTEGER,
    winner VARCHAR
)
SELECT MAX(stage) FROM table_28298471_14 WHERE winner = "Svein Tuft"
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: When svein tuft is the winner what is the highest stage? ### Input: CREATE TABLE table_28298471_14 (
    stage INTEGER,
    winner VARCHAR
) ### Response: SELECT MAX(stage) FROM table_28298471_14 WHERE winner = "Svein Tuft"