Colling Oners ndi chida chofunikira kwambiri chomwe chimagwiritsidwa ntchito kungula katundu pazakudya pogwiritsa ntchito maunyolo omwe amangidwa. Mwa njira zonse zomangirira, unyolo ndi zomangirira zimakhala ndi minofu yambiri kuti igwire ntchito zolimba kwambiri - zopangidwa ndi katundu wamkulu & wolemera.