@prefix rdf: . @prefix ns1: . @prefix prov: . ns1:cf9707c6-ed72-5461-9f8a-ec23f74fa802 rdf:type prov:Activity ; prov:used . @prefix xsd: . ns1:cf9707c6-ed72-5461-9f8a-ec23f74fa802 prov:atTime "2021-05-21T00:00:00"^^xsd:dateTime ; prov:wasAssociatedWith .