<https://clue0.com/faq/author/uu55ww99a/#author>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://clue0.com/faq/61572-%E3%83%93%E3%82%A2%E3%83%BC%E3%83%89%E3%83%91%E3%83%91-midori%E9%95%B7%E9%87%8E/>