<https://bitvalu.info/2020/02/21/#listItem>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://bitvalu.info/2020/02/21/%E3%80%8Cbitmart%E3%80%8D2-24%E3%82%88%E3%82%8A%EF%BC%92%E5%91%A8%E5%B9%B4%E8%A8%98%E5%BF%B5-bmx%E3%83%88%E3%83%AC%E3%83%BC%E3%83%87%E3%82%A3%E3%83%B3%E3%82%B0%E3%82%B3%E3%83%B3%E3%83%9A%E3%83%86/>