user: Question: Which lowest position has goals against smaller than 78, Points of 42-2, and Wins larger than 15?
Columns: ['Position', 'Club', 'Played', 'Points', 'Wins', 'Draws', 'Losses', 'Goals for', 'Goals against', 'Goal Difference']
Types: ['real', 'text', 'real', 'text', 'real', 'real', 'real', 'real', 'real', 'real']
Sample row: [1.0, 'Barcelona Atlètic', 44.0, '42-2', 16.0, 10.0, 18.0, 56.0, 58.0, 2.0]
SQL:

assistant: SELECT MIN("Position") FROM "Table" WHERE "Goals against" < 78.0 AND "Points" = '42-2' AND "Wins" > 15.0;