user: Question: Which City has a Stadium of Stadio Artemio Franchi, Florence?
Columns: ['Club', 'City', 'Stadium', 'Capacity', '2007–08 season']
Types: ['text', 'text', 'text', 'real', 'text']
Sample row: ['Atalanta B.C.', 'Bergamo', "Stadio Atleti Azzurri d'Italia", 26393.0, '9th in Serie A']
SQL:

assistant: SELECT "City" FROM "Table" WHERE "Stadium" = 'Stadio Artemio Franchi, Florence';