<https://dic.pixiv.net/a/%E3%82%B9%E3%83%95%E3%82%A3%E3%83%B3%E3%82%AF%E3%82%B9>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://dic.pixiv.net/a/%E3%82%B9%E3%83%95%E3%82%A3%E3%83%B3%E3%82%AF%E3%82%B9>