user: Question: Average larger than 2279, and a Team of queen of the south, and a Capacity larger than 6412 has what lowest of the sum?
Columns: ['Team', 'Stadium', 'Capacity', 'Highest', 'Lowest', 'Average']
Types: ['text', 'text', 'real', 'real', 'real', 'real']
Sample row: ['Dundee', 'Dens Park', 11856.0, 6537.0, 2831.0, 3995.0]
SQL:

assistant: SELECT SUM("Lowest") FROM "Table" WHERE "Average" > 2279.0 AND "Team" = 'queen of the south' AND "Capacity" > 6412.0;