Ключевые слова: advertisement, answer, break, brown, christmas, cleavage, cleaving, closeup, cobnut, colored, concept, core, crack, cutout, discovery, element, eureka, filbert, flaw, food, fracture, gift, hard, hardness, hazel, hazelnut, invention, isolated, kernel, macro, natural, nazel, nucleus, nut, nutshell, object, one, open, oversplitting, rive, round, seed, shell, sphere, split, squirrel, strong, tough, walnut, white,