Ключевые слова: abstract, achievement, answer, background, brain, broken, business, businessman, challenge, concept, confusion, crack, creativity, damage, danger, destruction, disaster, discovery, effect, faq, gap, ground, help, icon, idea, illustration, imagination, information, inspiration, interrogation, learn, mark, mind, opportunity, problem, query, question, risk, search, sign, solution, solve, solving, split, success, suspicion, symbol, think, vision, wall,