CREATE TABLE table_name_93 (stage VARCHAR(255), winner VARCHAR(255), mountains_classification VARCHAR(255), points_classification VARCHAR(255))
Which stage has a mountains classification of Mariano Piccoli, a points classification of Mario Cipollini and was won by Laudelino Cubino?
    
SQL: SELECT stage FROM table_name_93 WHERE mountains_classification = "mariano piccoli" AND points_classification = "mario cipollini" AND winner = "laudelino cubino"