user: ### NOW ANSWER:
Question: What constructor has a 12 grid?
Columns: ['Driver', 'Constructor', 'Laps', 'Time/Retired', 'Grid']
Types: ['text', 'text', 'real', 'text', 'real']
Sample row: ['Alain Prost', 'McLaren - TAG', 60.0, '1:32:28.408', 4.0]
SQL:

assistant: SELECT "Constructor" FROM "Table" WHERE "Grid" = 12.0;