user: Question: How much Silver has a Nation of mexico, and a Total larger than 1?
Columns: ['Rank', 'Nation', 'Gold', 'Silver', 'Bronze', 'Total']
Types: ['text', 'text', 'real', 'real', 'real', 'real']
Sample row: ['1', 'Mexico', 1.0, 0.0, 0.0, 1.0]
SQL:

assistant: SELECT SUM("Silver") FROM "Table" WHERE "Nation" = 'mexico' AND "Total" > 1.0;