<http://okabe-reien.com/%e3%83%9b%e3%83%bc%e3%83%a0-test/#webpage>
<http://schema.org/datePublished>
"2021-01-12T09:01:23+00:00"^^<http://schema.org/Date>
<http://okabe-reien.com/%E3%83%9B%E3%83%BC%E3%83%A0-test/>