Ключевые слова: 404, abstract, alphabet, background, business, code, communication, computer, concept, construction, cube, design, digital, eraser, error, errors, failure, handwork, hardwood, horizontal, information, internet, isolated, look, medicine, message, newspaper, note, paper, problem, programming, service, sign, support, symbol, system, target, technology, text, texture, thinking, up, wood, wooden, word, wrong,