user: Question: What is the lowest amount of silver medals iceland, who has less than 87 medals, has?
Columns: ['Nation', 'Gold', 'Silver', 'Bronze', 'Total']
Types: ['text', 'real', 'real', 'real', 'real']
Sample row: ['Luxembourg', 36.0, 39.0, 31.0, 106.0]
SQL:

assistant: SELECT MIN("Silver") FROM "Table" WHERE "Nation" = 'iceland' AND "Total" < 87.0;