user: Question: What event was in Detroit?
Columns: ['Rd.', 'Grand Prix', 'Date', 'Location', 'Pole Position', 'Fastest Lap', 'Winning Driver', 'Constructor', 'Report']
Types: ['real', 'text', 'text', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: [1.0, 'Brazilian Grand Prix', '3 April', 'Jacarepaguá', 'Ayrton Senna', 'Gerhard Berger', 'Alain Prost', 'McLaren - Honda', 'Report']
SQL:

assistant: SELECT "Grand Prix" FROM "Table" WHERE "Location" = 'Detroit';