user: Question: What race had Nelson Piquet on the pole and was in Nürburgring?
Columns: ['Rnd', 'Race', 'Date', 'Location', 'Pole Position', 'Fastest Lap', 'Race Winner', 'Constructor', 'Report']
Types: ['real', 'text', 'text', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: [1.0, 'Brazilian Grand Prix', '25 March', 'Jacarepaguá', 'Elio de Angelis', 'Alain Prost', 'Alain Prost', 'McLaren - TAG', 'Report']
SQL:

assistant: SELECT "Race" FROM "Table" WHERE "Pole Position" = 'Nelson Piquet' AND "Location" = 'Nürburgring';