How many season did sportfreunde siegen win best supported club?
CREATE TABLE table_12272590_2 (
    season VARCHAR,
    best_supported_club VARCHAR
)
SELECT COUNT(season) FROM table_12272590_2 WHERE best_supported_club = "Sportfreunde Siegen"
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: How many season did sportfreunde siegen win best supported club? ### Input: CREATE TABLE table_12272590_2 (
    season VARCHAR,
    best_supported_club VARCHAR
) ### Response: SELECT COUNT(season) FROM table_12272590_2 WHERE best_supported_club = "Sportfreunde Siegen"