Who was the young rider classification when Alessandro Petacchi won?
CREATE TABLE table_30586 (
    "Stage" real,
    "Winner" text,
    "General classification" text,
    "Points classification" text,
    "Mountains classification" text,
    "Young rider classification" text
)
SELECT "Young rider classification" FROM table_30586 WHERE "Winner" = 'Alessandro Petacchi'
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: Who was the young rider classification when Alessandro Petacchi won? ### Input: CREATE TABLE table_30586 (
    "Stage" real,
    "Winner" text,
    "General classification" text,
    "Points classification" text,
    "Mountains classification" text,
    "Young rider classification" text
) ### Response: SELECT "Young rider classification" FROM table_30586 WHERE "Winner" = 'Alessandro Petacchi'