<https://w3id.org/zericatalog/date/since-21-04-2010> <http://www.w3.org/2000/01/rdf-schema#label> "21-04-2010" .
<https://w3id.org/zericatalog/date/since-21-04-2010> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.ontologydesignpatterns.org/cp/owl/timeinterval.owl#TimeInterval> .