user: Question: What was the constructor when the laps were larger than 54, and the time/retired was +1 Lap on a grid of 20?
Columns: ['Driver', 'Constructor', 'Laps', 'Time/Retired', 'Grid']
Types: ['text', 'text', 'real', 'text', 'real']
Sample row: ['Fernando Alonso', 'Renault', 57.0, '1:29:18.531', 1.0]
SQL:

assistant: SELECT "Constructor" FROM "Table" WHERE "Laps" > 54.0 AND "Time/Retired" = '+1 Lap' AND "Grid" = 20.0;