CREATE TABLE table_72263 ("State" TEXT, "Preliminaries" TEXT, "Interview" TEXT, "Swimsuit" TEXT, "Evening Gown" TEXT, "Average" TEXT)

what's the preliminaries where evening gown is 8.988
SELECT "Preliminaries" FROM table_72263 WHERE "Evening Gown" = '8.988'
SELECT "Preliminaries" FROM "table_72263" WHERE "Evening Gown" = '8.988'