CREATE TABLE table_name_48 (winner VARCHAR, home_team VARCHAR, year VARCHAR)

who is the winner when the home team is sioux falls storm and the year is earlier than 2012?
SELECT winner FROM table_name_48 WHERE home_team = "sioux falls storm" AND year < 2012
SELECT "winner" FROM "table_name_48" WHERE "home_team" = "sioux falls storm" AND "year" < 2012