user: Question: Gold smaller than 2, and a Rank of 4, and a Nation of hungary (hun), and a Bronze smaller than 1 had what total number of silver?
Columns: ['Rank', 'Nation', 'Gold', 'Silver', 'Bronze', 'Total']
Types: ['text', 'text', 'real', 'real', 'real', 'real']
Sample row: ['1', 'Soviet Union (URS)', 9.0, 8.0, 5.0, 22.0]
SQL:

assistant: SELECT SUM("Silver") FROM "Table" WHERE "Gold" < 2.0 AND "Rank" = '4' AND "Nation" = 'hungary (hun)' AND "Bronze" < 1.0;