user: Question: Where the grid is under 19, the time finished was logged as received outside assistance, what's the total number of laps?
Columns: ['Driver', 'Constructor', 'Laps', 'Time/Retired', 'Grid']
Types: ['text', 'text', 'real', 'text', 'real']
Sample row: ['Jackie Stewart', 'Tyrrell - Ford', 80.0, '1:43:17.1', 5.0]
SQL:

assistant: SELECT SUM("Laps") FROM "Table" WHERE "Time/Retired" = 'received outside assistance' AND "Grid" < 19.0;