CREATE TABLE table_36270 ("Stage" TEXT, "Winner" TEXT, "General classification" TEXT, "Points classification" TEXT, "Mountains classification" TEXT, "Asian rider classification" TEXT, "Team classification" TEXT, "Asian team classification" TEXT)

Which Stage has a Mountains classification of filippo savini?
SELECT "Stage" FROM table_36270 WHERE "Mountains classification" = 'filippo savini'
SELECT "Stage" FROM "table_36270" WHERE "Mountains classification" = 'filippo savini'