Ключевые слова: agent, background, block, blocks, building, business, cancer, carbon, change, concept, conceptual, contaminated, contamination, copy space, cube, cubes, danger, dangerous, dead, deadly, economic, element, environment, environmental, factory, forbidden, hand, health, health care, healthcare, holding, human, industrial, industry, info, invest, life, poison, poisonous, polluted, pollution, quit, rent, residential, risk, small, smog, smoke, stop, technology, text, toxic, venomous, warn, wood, wooden, word, word of the year,