user: Question: What is the name of the Constructor with a 19 Grid?
Columns: ['Driver', 'Constructor', 'Laps', 'Time/Retired', 'Grid']
Types: ['text', 'text', 'real', 'text', 'real']
Sample row: ['Nigel Mansell', 'Williams - Honda', 63.0, '1:26:24.207', 1.0]
SQL:

assistant: SELECT "Constructor" FROM "Table" WHERE "Grid" = 19.0;