user: Question: What is the average laps for ralph firman with a grid of over 19?
Columns: ['Driver', 'Constructor', 'Laps', 'Time/Retired', 'Grid']
Types: ['text', 'text', 'real', 'text', 'real']
Sample row: ['Michael Schumacher', 'Ferrari', 70.0, '1:31:13.591', 3.0]
SQL:

assistant: SELECT AVG("Laps") FROM "Table" WHERE "Driver" = 'ralph firman' AND "Grid" > 19.0;