_:nf83afb1a7a3d4f76a061a4e151c1bfe8xb2
<http://schema.org/validFrom>
"2021-08-29T00:00"^^<http://schema.org/DateTime>
<https://zeilschooldemorra-boeken.nl/cursusaanbod/cursus-leren-zeilen-in-een-optimist-week-35/>