Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_24471 ( "Team" text, "Sport" text, "League" text, "Established" real, "Began in St. Louis" real, "Venue" text, "Championships in St. Louis" text, "Left St. Louis" real )

### Question ###
How many championships were won for arena football?

### Accurate SQL ###

SELECT "Championships in St. Louis" FROM table_24471 WHERE "Sport" = 'Arena Football'