<https://bikukan-kobo.com/blog/%e7%ac%ac%e4%b8%89%e5%9b%9e-%e7%95%b0%e6%a5%ad%e7%a8%ae%e3%82%b3%e3%83%a9%e3%83%9c%e3%82%bb%e3%83%9f%e3%83%8a%e3%83%bc%e3%82%92%e9%96%8b%e5%82%ac%e3%81%84%e3%81%9f%e3%81%97%e3%81%be%e3%81%99/attachment/dav-36/#itempage>
<http://schema.org/datePublished>
"2019-09-28T07:07:09+09:00"^^<http://schema.org/Date>
<https://bikukan-kobo.com/blog/%E7%AC%AC%E4%B8%89%E5%9B%9E-%E7%95%B0%E6%A5%AD%E7%A8%AE%E3%82%B3%E3%83%A9%E3%83%9C%E3%82%BB%E3%83%9F%E3%83%8A%E3%83%BC%E3%82%92%E9%96%8B%E5%82%AC%E3%81%84%E3%81%9F%E3%81%97%E3%81%BE%E3%81%99/attachment/dav-36/>