user: Question: What is the low grid that has brm and over 54 laps?
Columns: ['Driver', 'Constructor', 'Laps', 'Time/Retired', 'Grid']
Types: ['text', 'text', 'real', 'text', 'real']
Sample row: ['Jo Siffert', 'BRM', 54.0, '1:30:23.91', 1.0]
SQL:

assistant: SELECT MIN("Grid") FROM "Table" WHERE "Constructor" = 'brm' AND "Laps" > 54.0;