Ключевые слова: abstract, cascade, clean, cool, current, drinking, drop, echo, ecology, ecosystem, energy, environmental, falling, filter, flowing, fountain, freshness, green, healing, idyllic, irrigate, life, liquid, mashed potatoes, mineral, moss, moving, nature, nobody, peaceful, pour, purity, refreshing, ripple, scenic, serene, source, sparkles, sparse, speed, spray, stream, thirst, toilet, tranquil, transparent, waterfall, wet, wild, zen,