<https://ohtori-hs.ed.jp/activitytopics/activitytopics-5460/>
<http://schema.org/datePublished>
"2023-07-20T23:05:56+00:00"^^<http://schema.org/Date>
<https://ohtori-hs.ed.jp/activitytopics/activitytopics-5460/>