CREATE TABLE table_69823 ("Cyclist" TEXT, "Nation" TEXT, "Team" TEXT, "Time" TEXT, "UCI Points" FLOAT)

Which nation is Danilo di Luca from?
SELECT "Nation" FROM table_69823 WHERE "Cyclist" = 'danilo di luca'
SELECT "Nation" FROM "table_69823" WHERE "Cyclist" = 'danilo di luca'