user: Question: Which Host City has more than 6 Silver and a Total of 22?
Columns: ['Year', 'Edition', 'Host city', 'Gold', 'Silver', 'Bronze', 'Total']
Types: ['text', 'text', 'text', 'real', 'real', 'real', 'real']
Sample row: ['1951', 'I', 'Buenos Aires', 9.0, 20.0, 12.0, 41.0]
SQL:

assistant: SELECT "Host city" FROM "Table" WHERE "Silver" > 6.0 AND "Total" = 22.0;