<https://secure.gravatar.com/avatar/01d74b459569a5b1b8358c7cf728ef1d?s=96&amp;d=mm&amp;r=g>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.herwan.com.tw/%E5%9C%92%E5%8D%80%E5%B0%8E%E8%A6%BD/>