<https://dimag.ibs.re.kr/2019/how-to-subscribe-to-the-seminar-schedule/>
<http://schema.org/dateModified>
"2019-05-20T15:31:45+00:00"^^<http://schema.org/Date>
<https://dimag.ibs.re.kr/2019/how-to-subscribe-to-the-seminar-schedule/>