user: Question: What's the sum of Gold with a Bronze that's larger than 15, Silver that's smaller than 197, the Nation of saint lucia, and has a Total that is larger than 50?
Columns: ['Nation', 'Gold', 'Silver', 'Bronze', 'Total']
Types: ['text', 'real', 'real', 'real', 'real']
Sample row: ['Jamaica', 726.0, 506.0, 327.0, 1559.0]
SQL:

assistant: SELECT SUM("Gold") FROM "Table" WHERE "Bronze" > 15.0 AND "Silver" < 197.0 AND "Nation" = 'saint lucia' AND "Total" > 50.0;