user: Question: What is the sum of Silver, when Total is less than 1?
Columns: ['Rank', 'Nation', 'Gold', 'Silver', 'Bronze', 'Total']
Types: ['text', 'text', 'real', 'real', 'real', 'real']
Sample row: ['1', 'Soviet Union', 9.0, 1.0, 1.0, 11.0]
SQL:

assistant: SELECT SUM("Silver") FROM "Table" WHERE "Total" < 1.0;