<https://www.diadata.org/app/price/asset/Polkadot/0x0000000000000000000000000000000000000000/#webpage>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.diadata.org/app/price/asset/Polkadot/0x0000000000000000000000000000000000000000/>