user: Question: What is the average Gold where the Nation is russia (rus) and the number of silver is less than 2?
Columns: ['Rank', 'Nation', 'Gold', 'Silver', 'Bronze', 'Total']
Types: ['real', 'text', 'real', 'real', 'real', 'real']
Sample row: [1.0, 'United States (USA)', 13.0, 11.0, 2.0, 26.0]
SQL:

assistant: SELECT AVG("Gold") FROM "Table" WHERE "Nation" = 'russia (rus)' AND "Silver" < 2.0;