<https://db.cs.cmu.edu/events/db-seminar-summer-2019-db-group-tianyu-li/>
<http://schema.org/datePublished>
"2019-06-14T20:57:44+00:00"^^<http://schema.org/Date>
<https://db.cs.cmu.edu/events/db-seminar-summer-2019-db-group-tianyu-li/>