user: Question: What is the average number of drawn with a difference of 17 and 22 points?
Columns: ['Position', 'Team', 'Points', 'Played', 'Drawn', 'Lost', 'Against', 'Difference']
Types: ['real', 'text', 'real', 'real', 'real', 'real', 'real', 'text']
Sample row: [1.0, 'Corinthians', 30.0, 18.0, 2.0, 2.0, 19.0, '53']
SQL:

assistant: SELECT AVG("Drawn") FROM "Table" WHERE "Difference" = '17' AND "Points" = 22.0;