<https://secure.gravatar.com/avatar/949499e0dc1e869600297dd43aa0cd5b?s=96&amp;d=mm&amp;r=g>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://sislin.me/%E7%B6%93%E7%87%9F%E5%89%AF%E6%A5%AD%E5%A2%9E%E5%8A%A0%E6%94%B6%E5%85%A5%E8%A9%B2%E6%9C%89%E7%9A%84%E5%BF%83%E6%85%8B%E6%80%9D%E7%B6%AD/>