Ключевые слова: back, background, barrier, break, bright, broken, care, control, cultivated, ditch, ecology, element, environment, file, fire, flower, foliage, forest, forestry, grass, green, ground, heritage, landscape, leaf, line, local, measure, mixed, national, nature, nobody, perennial, picture, pine, plough, prevention, protection, protective, reserve, safety, separation, silence, sky, strip, tradition, trail, tree, vegetation, wood,