user: Question: What is the total number of 4th place that has 3 appearances for 3, and a more than 0 silver medals, and no gold medals?
Columns: ['Gold Medals', 'Silver Medals', 'Bronze Medals', '4th Place', '5th Place', 'Appearances']
Types: ['real', 'real', 'real', 'real', 'real', 'real']
Sample row: [16.0, 8.0, 2.0, 0.0, 0.0, 26.0]
SQL:

assistant: SELECT SUM("4th Place") FROM "Table" WHERE "Appearances" = 3.0 AND "Silver Medals" > 0.0 AND "Gold Medals" < 0.0;