user: Question: What is the lowest average score where the evening gown score was 8.811?
Columns: ['Country', 'Preliminary', 'Interview', 'Swimsuit', 'Evening Gown', 'Average']
Types: ['text', 'real', 'real', 'real', 'real', 'real']
Sample row: ['Texas', 9.577, 9.654, 9.787, 9.76, 9.733]
SQL:

assistant: SELECT MIN("Average") FROM "Table" WHERE "Evening Gown" = 8.811;