user: Question: Which the highest Bronze of czech republic with a Total smaller than 4?
Columns: ['Rank', 'Nation', 'Gold', 'Silver', 'Bronze', 'Total']
Types: ['text', 'text', 'real', 'real', 'real', 'real']
Sample row: ['1', 'Hungary', 7.0, 5.0, 5.0, 17.0]
SQL:

assistant: SELECT MAX("Bronze") FROM "Table" WHERE "Nation" = 'czech republic' AND "Total" < 4.0;