user: Question: How many Against have Played smaller than 18?
Columns: ['Position', 'Team', 'Points', 'Played', 'Drawn', 'Lost', 'Against', 'Difference']
Types: ['real', 'text', 'real', 'real', 'real', 'real', 'real', 'text']
Sample row: [1.0, 'Santos', 30.0, 18.0, 0.0, 3.0, 18.0, '25']
SQL:

assistant: SELECT COUNT("Against") FROM "Table" WHERE "Played" < 18.0;