user: Question: What is the sum of Total when rank is 2?
Columns: ['Rank', 'Nation', 'Gold', 'Silver', 'Bronze', 'Total']
Types: ['text', 'text', 'real', 'real', 'real', 'real']
Sample row: ['1', 'China', 4.0, 0.0, 1.0, 5.0]
SQL:

assistant: SELECT SUM("Total") FROM "Table" WHERE "Rank" = '2';