user: ### NOW ANSWER:
Question: what is the silver when the nation is syria (syr) and gold is more than 0?
Columns: ['Rank', 'Nation', 'Gold', 'Silver', 'Bronze', 'Total']
Types: ['text', 'text', 'real', 'real', 'real', 'real']
Sample row: ['1', 'China (CHN)', 9.0, 2.0, 3.0, 14.0]
SQL:

assistant: SELECT SUM("Silver") FROM "Table" WHERE "Nation" = 'syria (syr)' AND "Gold" > 0.0;