Ключевые слова: accident, alternative, barrel, black, building, can, canister, car, cargo, container, crash, delivery, disaster, dollar, ecology, energy, environment, exchange, factory, fuel, gallon, gas, gasoline, icon, industrial, industry, isolated, leaf, liquid, machine, money, motor, ocean, oil, price, railway, sea, set, ship, silhouette, silver, tank, tanker, trailer, transport, transportation, vehicle, vessel,