<https://nexo.io/zh/blog/the-risk-is-bigger-being-outside-of-crypto-rather-than-being-in-and-losing>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://nexo.io/zh/blog/the-risk-is-bigger-being-outside-of-crypto-rather-than-being-in-and-losing>