user: Question: Which Total is the lowest one that has a Rank smaller than 2, and a Silver smaller than 15?
Columns: ['Rank', 'Nation', 'Gold', 'Silver', 'Bronze', 'Total']
Types: ['real', 'text', 'real', 'real', 'real', 'real']
Sample row: [1.0, 'Cuba', 18.0, 15.0, 8.0, 41.0]
SQL:

assistant: SELECT MIN("Total") FROM "Table" WHERE "Rank" < 2.0 AND "Silver" < 15.0;