user: Question: What is the grid total for ralf schumacher racing over 53 laps?
Columns: ['Driver', 'Constructor', 'Laps', 'Time/Retired', 'Grid']
Types: ['text', 'text', 'real', 'text', 'real']
Sample row: ['Michael Schumacher', 'Ferrari', 53.0, '1:17:09.672', 1.0]
SQL:

assistant: SELECT SUM("Grid") FROM "Table" WHERE "Driver" = 'ralf schumacher' AND "Laps" > 53.0;