Ключевые слова: blue, bright, clean, cloud, country, ecology, energy, environment, farm, farming, field, flora, flower, friendly, generator, grass, green, landscape, light, lternative, meadow, metal, natural, nature, oil, open, organic, outdoor, plant, power, rotation, round, rural, sky, space, spring, summer, sun, sunflower, sunny, trees, turbine, two, white, wind, windmill, yellow,