user: Question: What constructor has less than 3 laps and grid 15?
Columns: ['Driver', 'Constructor', 'Laps', 'Time/Retired', 'Grid']
Types: ['text', 'text', 'real', 'text', 'real']
Sample row: ['Luigi Fagioli Juan Manuel Fangio', 'Alfa Romeo', 77.0, '3:22:11.0', 7.0]
SQL:

assistant: SELECT "Constructor" FROM "Table" WHERE "Laps" < 3.0 AND "Grid" = 15.0;