Which young classification has an aggressive rider of Tim Johnson?
CREATE TABLE table_name_89 (
    young_classification VARCHAR,
    aggressive_rider VARCHAR
)
SELECT young_classification FROM table_name_89 WHERE aggressive_rider = "tim johnson"
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: Which young classification has an aggressive rider of Tim Johnson? ### Input: CREATE TABLE table_name_89 (
    young_classification VARCHAR,
    aggressive_rider VARCHAR
) ### Response: SELECT young_classification FROM table_name_89 WHERE aggressive_rider = "tim johnson"