Ключевые слова: answer, ask, assistance, block, business, cognition, communication, concept, confusion, copy space, cube, development, different, distrust, doubt, education, enigma, faq, far, help, icon, idea, information, innovation, know, learning, mark, opinion, person, planning, problem, punctuation, query, quest, question, questionnaire, shape, sign, solution, strategy, support, suspicion, symbol, technology, text, think, uncertainty, unique, why, wood,