CREATE TABLE table_47664 ("Year" TEXT, "Track" TEXT, "125 cc" TEXT, "250 cc" TEXT, "Report" TEXT)

At what track resulted in Fausto Gresini winning the 125 cc and Carlos Lavado winning the 250 cc?
SELECT "Track" FROM table_47664 WHERE "125 cc" = 'fausto gresini' AND "250 cc" = 'carlos lavado'
SELECT "Track" FROM "table_47664" WHERE "125 cc" = 'fausto gresini' AND "250 cc" = 'carlos lavado'