Ключевые слова: abstract, background, band, bands, blue, business, circle, collection, color, colorful, design, elastic, equipment, flexibility, green, group, gum, handy, heap, isolated, line, lot, macro, many, multi, object, objects, office, pile, plastic, red, rope, round, rubber, set, stack, stacked, stationary, stress, symbol, white, work, yellow,