@prefix ns1: . @prefix rdfs: . @prefix xsd: . a ns1:Event ; rdfs:label "New York Symphony String Quartet" ; ns1:description "chamber music performance" ; ns1:location ; ns1:organizer ; ns1:startDate "1891-12-20T15:30:00"^^xsd:dateTime ; ns1:subEvent , , ; rdfs:comment """See advertisement:\r The sun. [volume] (New York [N.Y.]), 16 Dec. 1891. Chronicling America: Historic American Newspapers. Lib. of Congress. Link to advertisement""" .