Ключевые слова: alarm, alert, attention, background, badge, be aware, block, blocks, business, caution, closeup, concept, conceptual, coronavirus, covid19, cube, cubes, cubic, education, epidemic, excitement, holidays, important, information, inscription, learn, letter, message, nature, nobody, notice, object, point, prevention, shape, sign, signal, square, stop, text, toy, wood, wood blocks, wooden, wooden block, word, written,