user: Question: Who constructed the car with a grid larger than 20 that got in an Accident?
Columns: ['Driver', 'Constructor', 'Laps', 'Time/Retired', 'Grid']
Types: ['text', 'text', 'real', 'text', 'real']
Sample row: ['Michael Schumacher', 'Ferrari', 54.0, '1:17:40.646', 1.0]
SQL:

assistant: SELECT "Constructor" FROM "Table" WHERE "Grid" > 20.0 AND "Time/Retired" = 'Accident';