Ключевые слова: article, asphalt, background, black, blue, chalk, chalkboard, color, colorful, concept, concrete, counting, dirty, draw, drawing, education, forums, frame, furnaces, gray, green, inscription, learning, mana, math, mathematics, message, number, numbers, orange, painting, pink, school, science, shape, sidewalk, sign, sketch, symbol, tarmac, white, word, yellow,