Ключевые слова: air, anniversary, background, balloon, birthday, blue, bunch, carnival, celebrate, celebration, circus, color, colorful, decoration, festival, festive, filled, flight, float, flotation, fly, fun, gas, green, grey, group, heap, helium, holiday, inflatable, joy, latex, many, oxygen, party, plastic, play, primary, round, rubber, space, streamers, strings, up, yellow,