@prefix ns1: . @prefix rdfs: . @prefix xsd: . a ns1:Event ; rdfs:label "Youth String and Orchestra Festival" ; ns1:description "student performance", "symphony orchestra performance" ; ns1:location ; ns1:organizer ; ns1:startDate "1957-04-07T17:45:00"^^xsd:dateTime ; ns1:subEvent , , , , , , , , , , , , , ; rdfs:comment "WORLD PREMIERE of Robert Dix Lincoln's ARIOSO (commissioned by the All-City Orchestra of Knoxville, TN)" .