@prefix ns1: . @prefix rdfs: . @prefix xsd: . a ns1:Event ; rdfs:label "Heifetz-Piatigorsky Concerts: Gregor Piatigorsky and Leonard Pennario" ; ns1:description "duo recital" ; ns1:location ; ns1:organizer ; ns1:startDate "1966-10-09T19:00:00"^^xsd:dateTime ; ns1:subEvent , , , ; rdfs:comment "Presenter: Columbia Festivals, Inc." .