<https://soken.nifs.ac.jp/en/archives/author/marukanri3#author>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://soken.nifs.ac.jp/en/archives/%E3%82%A4%E3%83%99%E3%83%B3%E3%83%88/ai1ec_event-6238>