user: Question: How many silver medals did Spain have when they had more than 0 bronze medals and less than 54 total medals?
Columns: ['Rank', 'Nation', 'Gold', 'Silver', 'Bronze', 'Total']
Types: ['text', 'text', 'real', 'real', 'real', 'real']
Sample row: ['1', 'Soviet Union', 7.0, 6.0, 3.0, 16.0]
SQL:

assistant: SELECT "Silver" FROM "Table" WHERE "Bronze" > 0.0 AND "Total" < 54.0 AND "Nation" = 'Spain';