<https://www.r-yoga.jp/schedule/672/attachment/92008427-2e21-4404-a485-97e920d08838/#itempage>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.r-yoga.jp/schedule/672/attachment/92008427-2e21-4404-a485-97e920d08838/>