CREATE TABLE table_70236 ("Stage" TEXT, "Winner" TEXT, "General classification" TEXT, "Points classification" TEXT, "Mountains classification" TEXT, "Young rider classification" TEXT, "Intergiro classification" TEXT, "Trofeo Fast Team" TEXT)

During stage 21, who held the Intergiro classification?
SELECT "Intergiro classification" FROM table_70236 WHERE "Stage" = '21'
SELECT "Intergiro classification" FROM "table_70236" WHERE "Stage" = '21'