user: Question: what country is John Nielsen from
Columns: ['Position', 'Race Number', 'Driver', 'Country', 'Laps']
Types: ['text', 'real', 'text', 'text', 'text']
Sample row: ['1.', 11.0, 'Derek Warwick', 'GB', '16']
SQL:

assistant: SELECT "Country" FROM "Table" WHERE "Driver" = 'John Nielsen';