Ключевые слова: abstract, art, background, black, break, chain, collection, concept, conceptual, connection, crime, defense, fetter, gray, grunge, grungy, guard, industrial, industry, iron, isolated, jewelry, large, link, lock, metal, open, padlock, privacy, protect, protection, restricted, restriction, safe, safeguard, secured, security, series, set, shackle, shape, shiny, silver, steel, strength, strong, symbol, tool, unite, white,