<https://log.whitebook.info/photo/2014/06/sigma-50mm-f1-4-ex-dg-hsm.html#webpage>
<http://schema.org/dateModified>
"2016-07-19T08:50:24+09:00"^^<http://schema.org/Date>
<https://log.whitebook.info/photo/2014/06/sigma-50mm-f1-4-ex-dg-hsm.html>