<https://crypto-economy.com/mitsubishi-electric-partners-with-tokyo-tech-to-develop-a-blockchain-for-energy-trading/>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://crypto-economy.com/mitsubishi-electric-partners-with-tokyo-tech-to-develop-a-blockchain-for-energy-trading/>