user: Question: What is the most elevated Position that has a Points of 257, and a Bike No littler than 19?
Columns: ['Position', 'Driver / Passenger', 'Equipment', 'Bike No', 'Points']
Types: ['real', 'text', 'text', 'real', 'real']
Sample row: [1.0, 'Ben Adriaenssen / Ben van den Bogaart', 'KTM -WSP', 3.0, 610.0]
SQL:

assistant: SELECT MAX("Position") FROM "Table" WHERE "Points" = 257.0 AND "Bike No" < 19.0;