<https://ccbhall.saitama.jp/#mainImage>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://ccbhall.saitama.jp/hall_letter/2019/09/2003/attachment/ccb%E3%83%9B%E3%83%BC%E3%83%AB%E3%83%AC%E3%82%BF%E3%83%BC%E7%AC%AC%EF%BC%98%E5%8F%B7/>