user: ### NOW ANSWER:
Question: What is the highest Silver, when Gold is "8", and when Total is greater than 31?
Columns: ['Rank', 'Nation', 'Gold', 'Silver', 'Bronze', 'Total']
Types: ['text', 'text', 'real', 'real', 'real', 'real']
Sample row: ['1', 'Australia', 34.0, 27.0, 19.0, 80.0]
SQL:

assistant: SELECT MAX("Silver") FROM "Table" WHERE "Gold" = 8.0 AND "Total" > 31.0;