Ключевые слова: against, background, bad, balance, black, blackboard, board, business, chalk, chalkboard, chart, choice, class, column, comparison, con, concepts, decision, drawing, empty, finance, frame, good, hand, handwriting, ideas, inspiration, isolated, line, list, message, motivation, negative, positive, pro, sign, solution, space, strategy, success, survey, text, white, write, yes,