Ключевые слова: analysis, analyze, arrow, background, billboard, black, blackboard, board, business, chalk, chalkboard, chart, class, color, colour, corporate, data, diagram, drawing, economy, education, figure, finance, graph, grow, growth, improvement, increase, investment, lecturer, lesson, market, presentation, price, profit, report, research, room, school, sketch, statistics, stats, stock, strategy, success, successful, university, up, zzzahhaaanejenehfpdddbdgdgcnefgegjhe,