user: Question: What is the lowest number of silvers for countries in rank 12 with more than 0 bronze?
Columns: ['Rank', 'Nation', 'Gold', 'Silver', 'Bronze', 'Total']
Types: ['text', 'text', 'real', 'real', 'real', 'real']
Sample row: ['1', 'Hungary', 8.0, 4.0, 4.0, 16.0]
SQL:

assistant: SELECT MIN("Silver") FROM "Table" WHERE "Rank" = '12' AND "Bronze" > 0.0;