Ключевые слова: abstract, alternative, architecture, background, biology, blank, building, business, clean, concept, conceptual, conservation, construction, daisy, design, eco, ecological, ecology, energy, environment, estate, flower, grass, green, health, healthy, home, house, housing, icon, innovation, nature, power, real, recycle, recycling, renewable, safety, security, sign, spring, symbol, technology, wooden,