The law of value refers to the objective inevitability of the commodity economy in which the value of the commodity depends on the socially necessary labor time to produce the commodity and the exchange of commodities on the principle of equal value. Which of the following situations violates the law of value? ['Due to the technology of manufacturing rockets, the cost is much higher than that of cars, and rockets are far more expensive than cars.', 'Matches are far cheaper than gasoline.', 'A liar used a brick to deceive another piece of gold because the liar said it was a Qin Dynasty artifact.', 'The ancient ethnic minorities exchanged bargains with Han people in Tianshui and exchanged their fur for rice of equivalent value.']