Ключевые слова: abundance, background, black, business, chunk, concept, dark, dig, digger, discovery, economics, exchange, expensive, finance, finding, fortune, gold, golden, goldmine, grey, grunge, heap, lump, lumps, luxury, metal, mine, miner, money, nobody, nuggets, object, ore, pile, precious, profit, rich, rock, rough, rush, sell, shiny, stones, success, table, texture, trade, treasure,