Ключевые слова: archives, background, ban, black, book, censor, censorship, chain, chrome, clasplock, closed, concept, device, document, education, equipment, forbidden, guarded, hardcover, iron, isolated, knowledge, literature, lock, metal, metallic, mystery, new, novel, object, one, padlock, paper, privy, prohibit, prohibited, protect, protection, safe, safety, secrecy, secret, secure, shield, single, steel, strength, study, white, with,