user: ### NOW ANSWER:
Question: What is the sum of laps for grid 20?
Columns: ['Driver', 'Constructor', 'Laps', 'Time/Retired', 'Grid']
Types: ['text', 'text', 'real', 'text', 'real']
Sample row: ['Niki Lauda', 'McLaren - TAG', 70.0, '1:32:29.263', 10.0]
SQL:

assistant: SELECT SUM("Laps") FROM "Table" WHERE "Grid" = 20.0;