sentences:  The "Superiore" is a stronger aged wine, and was promoted to "Denominazione di origine controllata e garantita" (DOCG) status in 2001.The blend of grapes used to produce the wine primarily includes Corvina, Rondinella, and Molinara.Up to 15% of the blend is allowed to include Rossignola, Barbera, Sangiovese, or Garganega, in any combination.