user: Question: What is the average value for Lost, when the value for Goals Scored is greater than 20, and when the value for Played is less than 18?
Columns: ['Place', 'Team', 'Played', 'Draw', 'Lost', 'Goals Scored', 'Goals Conceded', 'Points']
Types: ['real', 'text', 'real', 'real', 'real', 'real', 'real', 'real']
Sample row: [1.0, 'C.D. FAS', 18.0, 8.0, 1.0, 34.0, 16.0, 35.0]
SQL:

assistant: SELECT AVG("Lost") FROM "Table" WHERE "Goals Scored" > 20.0 AND "Played" < 18.0;