<https://www.ytcaptain.com/#website>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.ytcaptain.com/archives/tag/%E9%85%92%E7%B1%BB%E5%A4%96%E8%B4%B8%E8%8B%B1%E6%96%87%E7%BD%91%E7%AB%99%E8%AE%BE%E8%AE%A1>