user: Question: Which Rank is the lowest one that has a Nation of switzerland, and a Bronze smaller than 0?
Columns: ['Rank', 'Nation', 'Gold', 'Silver', 'Bronze', 'Total']
Types: ['real', 'text', 'real', 'real', 'real', 'real']
Sample row: [1.0, 'Soviet Union', 3.0, 1.0, 2.0, 6.0]
SQL:

assistant: SELECT MIN("Rank") FROM "Table" WHERE "Nation" = 'switzerland' AND "Bronze" < 0.0;