Ключевые слова: background, blue, chain, color, column, connect, connection, countryside, design, distribution, drink, emergency, environment, equipment, factory, faucet, fire, fresh, garden, grass, handle, help, hydrant, iron, key, life, liquid, meadow, metal, nature, old, outdoor, park, pipe, point, pressure, protection, pump, rescue, rural, safe, safety, security, service, street, summer, supply, tap, village, water,