who is the winner when the home team is sioux falls storm and the year is earlier than 2012?
CREATE TABLE table_63519 (
    "Year" real,
    "Home Team" text,
    "Away Team" text,
    "Winner" text,
    "Score" text
)
SELECT "Winner" FROM table_63519 WHERE "Home Team" = 'sioux falls storm' AND "Year" < '2012'
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 is the winner when the home team is sioux falls storm and the year is earlier than 2012? ### Input: CREATE TABLE table_63519 (
    "Year" real,
    "Home Team" text,
    "Away Team" text,
    "Winner" text,
    "Score" text
) ### Response: SELECT "Winner" FROM table_63519 WHERE "Home Team" = 'sioux falls storm' AND "Year" < '2012'