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_57977 ( "Team" text, "Games Played" real, "Wins" real, "Losses" real, "Ties" real, "Goals For" real, "Goals Against" real )

### Question ###
What is the total wins with less than 21 goals taken?

### Accurate SQL ###

SELECT SUM("Wins") FROM table_57977 WHERE "Goals Against" < '21'