@prefix ns1: . @prefix rdfs: . @prefix xsd: . a ns1:Event ; rdfs:label "Ursula Oppens, Piano" ; ns1:description "solo recital" ; ns1:location ; ns1:organizer ; ns1:startDate "1994-04-20T20:00:00"^^xsd:dateTime ; ns1:subEvent , , , , , , ; rdfs:comment """NEW YORK PREMIERE of John Harbison's PIANO SONATA NO. 1\r \r """ .