user: Question: How many draws were there when there were points less than 23, 6 losses, and more than 21 against?
Columns: ['Position', 'Team', 'Points', 'Played', 'Drawn', 'Lost', 'Against', 'Difference']
Types: ['real', 'text', 'real', 'real', 'real', 'real', 'real', 'text']
Sample row: [1.0, 'Vasco da Gama', 24.0, 18.0, 8.0, 2.0, 16.0, '10']
SQL:

assistant: SELECT SUM("Drawn") FROM "Table" WHERE "Points" < 23.0 AND "Lost" = 6.0 AND "Against" > 21.0;