user: Question: What is the constructor for the driver with grid less than 2?
Columns: ['Driver', 'Constructor', 'Laps', 'Time/Retired', 'Grid']
Types: ['text', 'text', 'real', 'text', 'real']
Sample row: ['Ralf Schumacher', 'Williams - BMW', 45.0, '1:18:17.873', 2.0]
SQL:

assistant: SELECT "Constructor" FROM "Table" WHERE "Grid" < 2.0;