Ключевые слова: black, caucasian, coal, dark, dirty, dust, energy, engineer, equipment, excavation, excavator, export, extracted, factory, hand, happy, hard, hardhat, hat, head, helmet, holding, human, industrial, industry, job, manufacturing, mine, miner, mineral, mining, occupation, one, person, portrait, positive, power, production, profession, quarry, safety, smiling, soot, standing, stone, treasure, work, worker, young,