Ключевые слова: alphabet, anticipation, assurance, assured, background, business, certain, change, clear, communication, concept, confused, confusion, cube, data, decision, detail, doubt, doubtful, element, enter, equipment, false, icon, idea, information, input, internet, letter, message, modern, network, object, office, problem, shape, sign, single, solution, square, sure, symbol, technology, text, tool, type, uncertain, unsure, word,