user: Question: Name the country for Johannesburg
Columns: ['City', 'Country', 'IATA', 'ICAO', 'Airport']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['Blantyre', 'Malawi', 'BLZ', 'FWCL', 'Chileka International Airport']
SQL:

assistant: SELECT "Country" FROM "Table" WHERE "City" = 'Johannesburg';