Question: Which winner has a points classification of Tony Rominger at stage 17?
SQL: SELECT "Winner" FROM "2-12261872-2" WHERE "Points classification" = 'Tony Rominger' AND "Stage" = '17';

Question: 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 "2-12261872-2" WHERE "Mountains classification" = 'Mariano Piccoli' AND "Points classification" = 'Mario Cipollini' AND "Winner" = 'Laudelino Cubino';

Question: Who won stage 16?
SQL: SELECT "Winner" FROM "2-12261872-2" WHERE "Stage" = '16';

Question: Which mountains classification has a general classification of Tony Rominger and was won by Maurizio Fondriest?
SQL: SELECT "Mountains classification" FROM "2-12261872-2" WHERE "General classification" = 'Tony Rominger' AND "Winner" = 'Maurizio Fondriest';

Question: What is the general classification at stage 18 that has a points classification of Tony Rominger?
SQL: SELECT "General classification" FROM "2-12261872-2" WHERE "Points classification" = 'Tony Rominger' AND "Stage" = '18';

Question: Which stage has a mountains classification of Mariano Piccoli and was won by Giuseppe Citterio?
SQL: SELECT "Stage" FROM "2-12261872-2" WHERE "Mountains classification" = 'Mariano Piccoli' AND "Winner" = 'Giuseppe Citterio';