user: Question: What is the evening gown number when the average is more than 8.984 in louisiana and the preliminary is more than 8.597?
Columns: ['Country', 'Preliminary', 'Interview', 'Swimsuit', 'Evening Gown', 'Average']
Types: ['text', 'real', 'real', 'real', 'real', 'real']
Sample row: ['Texas', 9.14, 9.155, 9.222, 9.466, 9.281]
SQL:

assistant: SELECT "Evening Gown" FROM "Table" WHERE "Average" > 8.984 AND "Country" = 'louisiana' AND "Preliminary" > 8.597;