user: Question: How many laps did giancarlo fisichella do with a grid larger than 15?
Columns: ['Driver', 'Constructor', 'Laps', 'Time/Retired', 'Grid']
Types: ['text', 'text', 'real', 'text', 'real']
Sample row: ['Michael Schumacher', 'Ferrari', 73.0, '1:36:30.883', 1.0]
SQL:

assistant: SELECT SUM("Laps") FROM "Table" WHERE "Driver" = 'giancarlo fisichella' AND "Grid" > 15.0;