CREATE TABLE table_40509 ("Date" TEXT, "Location" TEXT, "Country" TEXT, "Event" TEXT, "Winner" TEXT, "Runner-up" TEXT)

On the date november 24-december 6 what's the winner when the country is united states?
SELECT "Winner" FROM table_40509 WHERE "Country" = 'united states' AND "Date" = 'november 24-december 6'
SELECT "Winner" FROM "table_40509" WHERE "Country" = 'united states' AND "Date" = 'november 24-december 6'