Ключевые слова: background, black, burning, char, charcoal, coal, color, cooking, copy, dark, dirty, eco, energy, environment, extraction, fire, fossil, fuel, grey, heap, heat, heating, hot, house, industry, lignite, manufacturing, material, miner, mineral, natural, nobody, object, organic, piece, pieces, production, resource, rock, season, solid, space, stone, text, top, underground, view, warming, winter, wood,